Home / 103,629.56-155,446.97-77,500.17

Finding the Fourth Proportional to 103,629.56, 155,446.97 and 77,500.17

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Solution

The fourth proportional to 103,629.56, 155,446.97 and 77,500.17 is: 116,252.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,629.56 : 155,446.97 = 77,500.17 : x
  2. Step 2: Convert to fraction form
    103,629.56/155,446.97 = 77,500.17/x
  3. Step 3: Cross multiply
    103,629.56x = 155,446.97 × 77,500.17
  4. Step 4: Simplify right side
    103,629.56x = 12,047,166,213.48
  5. Step 5: Solve for x
    x = 12,047,166,213.48/103,629.56
  6. Step 6: Final answer
    x = 116,252.22

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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.