Home / 112,631.28-155,436-62,330.28

Finding the Fourth Proportional to 112,631.28, 155,436 and 62,330.28

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Solution

The fourth proportional to 112,631.28, 155,436 and 62,330.28 is: 86,018.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,631.28 : 155,436 = 62,330.28 : x
  2. Step 2: Convert to fraction form
    112,631.28/155,436 = 62,330.28/x
  3. Step 3: Cross multiply
    112,631.28x = 155,436 × 62,330.28
  4. Step 4: Simplify right side
    112,631.28x = 9,688,369,402.08
  5. Step 5: Solve for x
    x = 9,688,369,402.08/112,631.28
  6. Step 6: Final answer
    x = 86,018.46

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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.