Home / 99,301.68-137,036.61-56,860.92

Finding the Fourth Proportional to 99,301.68, 137,036.61 and 56,860.92

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Solution

The fourth proportional to 99,301.68, 137,036.61 and 56,860.92 is: 78,468.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,301.68 : 137,036.61 = 56,860.92 : x
  2. Step 2: Convert to fraction form
    99,301.68/137,036.61 = 56,860.92/x
  3. Step 3: Cross multiply
    99,301.68x = 137,036.61 × 56,860.92
  4. Step 4: Simplify right side
    99,301.68x = 7,792,027,718.28
  5. Step 5: Solve for x
    x = 7,792,027,718.28/99,301.68
  6. Step 6: Final answer
    x = 78,468.24

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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.