Home / 102,812.45-141,897.60-60,362.78

Finding the Fourth Proportional to 102,812.45, 141,897.60 and 60,362.78

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Solution

The fourth proportional to 102,812.45, 141,897.60 and 60,362.78 is: 83,310.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,812.45 : 141,897.60 = 60,362.78 : x
  2. Step 2: Convert to fraction form
    102,812.45/141,897.60 = 60,362.78/x
  3. Step 3: Cross multiply
    102,812.45x = 141,897.60 × 60,362.78
  4. Step 4: Simplify right side
    102,812.45x = 8,565,332,901.84
  5. Step 5: Solve for x
    x = 8,565,332,901.84/102,812.45
  6. Step 6: Final answer
    x = 83,310.27

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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.