Home / 147,769.40-221,654.10-88,671.80

Finding the Fourth Proportional to 147,769.40, 221,654.10 and 88,671.80

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Solution

The fourth proportional to 147,769.40, 221,654.10 and 88,671.80 is: 133,007.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,769.40 : 221,654.10 = 88,671.80 : x
  2. Step 2: Convert to fraction form
    147,769.40/221,654.10 = 88,671.80/x
  3. Step 3: Cross multiply
    147,769.40x = 221,654.10 × 88,671.80
  4. Step 4: Simplify right side
    147,769.40x = 19,654,468,024.38
  5. Step 5: Solve for x
    x = 19,654,468,024.38/147,769.40
  6. Step 6: Final answer
    x = 133,007.70

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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.