Home / 100,156.02-150,241.32-30,040.80

Finding the Fourth Proportional to 100,156.02, 150,241.32 and 30,040.80

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Solution

The fourth proportional to 100,156.02, 150,241.32 and 30,040.80 is: 45,063.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,156.02 : 150,241.32 = 30,040.80 : x
  2. Step 2: Convert to fraction form
    100,156.02/150,241.32 = 30,040.80/x
  3. Step 3: Cross multiply
    100,156.02x = 150,241.32 × 30,040.80
  4. Step 4: Simplify right side
    100,156.02x = 4,513,369,445.86
  5. Step 5: Solve for x
    x = 4,513,369,445.86/100,156.02
  6. Step 6: Final answer
    x = 45,063.39

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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.