Home / 125,864.80-173,673.56-72,139.52

Finding the Fourth Proportional to 125,864.80, 173,673.56 and 72,139.52

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Solution

The fourth proportional to 125,864.80, 173,673.56 and 72,139.52 is: 99,541.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,864.80 : 173,673.56 = 72,139.52 : x
  2. Step 2: Convert to fraction form
    125,864.80/173,673.56 = 72,139.52/x
  3. Step 3: Cross multiply
    125,864.80x = 173,673.56 × 72,139.52
  4. Step 4: Simplify right side
    125,864.80x = 12,528,727,255.09
  5. Step 5: Solve for x
    x = 12,528,727,255.09/125,864.80
  6. Step 6: Final answer
    x = 99,541.15

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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.