Home / 167,685.20-231,329.24-99,663.52

Finding the Fourth Proportional to 167,685.20, 231,329.24 and 99,663.52

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Solution

The fourth proportional to 167,685.20, 231,329.24 and 99,663.52 is: 137,490.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,685.20 : 231,329.24 = 99,663.52 : x
  2. Step 2: Convert to fraction form
    167,685.20/231,329.24 = 99,663.52/x
  3. Step 3: Cross multiply
    167,685.20x = 231,329.24 × 99,663.52
  4. Step 4: Simplify right side
    167,685.20x = 23,055,085,417.55
  5. Step 5: Solve for x
    x = 23,055,085,417.55/167,685.20
  6. Step 6: Final answer
    x = 137,490.29

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1.5x scale

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.