Home / 103,426,280.20-155,139,420.30-101,914,625.80

Finding the Fourth Proportional to 103,426,280.20, 155,139,420.30 and 101,914,625.80

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Solution

The fourth proportional to 103,426,280.20, 155,139,420.30 and 101,914,625.80 is: 152,871,938.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,426,280.20 : 155,139,420.30 = 101,914,625.80 : x
  2. Step 2: Convert to fraction form
    103,426,280.20/155,139,420.30 = 101,914,625.80/x
  3. Step 3: Cross multiply
    103,426,280.20x = 155,139,420.30 × 101,914,625.80
  4. Step 4: Simplify right side
    103,426,280.20x = 15,810,975,966,703,424
  5. Step 5: Solve for x
    x = 15,810,975,966,703,424/103,426,280.20
  6. Step 6: Final answer
    x = 152,871,938.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.