Home / 103,631.30-155,446.95-101,327.30

Finding the Fourth Proportional to 103,631.30, 155,446.95 and 101,327.30

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Solution

The fourth proportional to 103,631.30, 155,446.95 and 101,327.30 is: 151,990.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,631.30 : 155,446.95 = 101,327.30 : x
  2. Step 2: Convert to fraction form
    103,631.30/155,446.95 = 101,327.30/x
  3. Step 3: Cross multiply
    103,631.30x = 155,446.95 × 101,327.30
  4. Step 4: Simplify right side
    103,631.30x = 15,751,019,736.74
  5. Step 5: Solve for x
    x = 15,751,019,736.74/103,631.30
  6. Step 6: Final answer
    x = 151,990.95

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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.