Home / 122,982.71-169,666.85-75,153.02

Finding the Fourth Proportional to 122,982.71, 169,666.85 and 75,153.02

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Solution

The fourth proportional to 122,982.71, 169,666.85 and 75,153.02 is: 103,681.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,982.71 : 169,666.85 = 75,153.02 : x
  2. Step 2: Convert to fraction form
    122,982.71/169,666.85 = 75,153.02/x
  3. Step 3: Cross multiply
    122,982.71x = 169,666.85 × 75,153.02
  4. Step 4: Simplify right side
    122,982.71x = 12,750,975,510.94
  5. Step 5: Solve for x
    x = 12,750,975,510.94/122,982.71
  6. Step 6: Final answer
    x = 103,681.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.