Home / 112,681.75-155,505.68-62,380.75

Finding the Fourth Proportional to 112,681.75, 155,505.68 and 62,380.75

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Solution

The fourth proportional to 112,681.75, 155,505.68 and 62,380.75 is: 86,088.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,681.75 : 155,505.68 = 62,380.75 : x
  2. Step 2: Convert to fraction form
    112,681.75/155,505.68 = 62,380.75/x
  3. Step 3: Cross multiply
    112,681.75x = 155,505.68 × 62,380.75
  4. Step 4: Simplify right side
    112,681.75x = 9,700,560,947.66
  5. Step 5: Solve for x
    x = 9,700,560,947.66/112,681.75
  6. Step 6: Final answer
    x = 86,088.13

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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.