Home / 112,986.13-155,920.08-62,685.13

Finding the Fourth Proportional to 112,986.13, 155,920.08 and 62,685.13

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Solution

The fourth proportional to 112,986.13, 155,920.08 and 62,685.13 is: 86,505.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,986.13 : 155,920.08 = 62,685.13 : x
  2. Step 2: Convert to fraction form
    112,986.13/155,920.08 = 62,685.13/x
  3. Step 3: Cross multiply
    112,986.13x = 155,920.08 × 62,685.13
  4. Step 4: Simplify right side
    112,986.13x = 9,773,870,484.41
  5. Step 5: Solve for x
    x = 9,773,870,484.41/112,986.13
  6. Step 6: Final answer
    x = 86,505.05

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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.