Home / 103,436.30-155,154.45-98,624.90

Finding the Fourth Proportional to 103,436.30, 155,154.45 and 98,624.90

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Solution

The fourth proportional to 103,436.30, 155,154.45 and 98,624.90 is: 147,937.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,436.30 : 155,154.45 = 98,624.90 : x
  2. Step 2: Convert to fraction form
    103,436.30/155,154.45 = 98,624.90/x
  3. Step 3: Cross multiply
    103,436.30x = 155,154.45 × 98,624.90
  4. Step 4: Simplify right side
    103,436.30x = 15,302,092,115.81
  5. Step 5: Solve for x
    x = 15,302,092,115.81/103,436.30
  6. Step 6: Final answer
    x = 147,937.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.