Home / 103,632.57-155,451.48-77,503.17

Finding the Fourth Proportional to 103,632.57, 155,451.48 and 77,503.17

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Solution

The fourth proportional to 103,632.57, 155,451.48 and 77,503.17 is: 116,256.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,632.57 : 155,451.48 = 77,503.17 : x
  2. Step 2: Convert to fraction form
    103,632.57/155,451.48 = 77,503.17/x
  3. Step 3: Cross multiply
    103,632.57x = 155,451.48 × 77,503.17
  4. Step 4: Simplify right side
    103,632.57x = 12,047,982,481.19
  5. Step 5: Solve for x
    x = 12,047,982,481.19/103,632.57
  6. Step 6: Final answer
    x = 116,256.72

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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.