Home / 147,265.10-220,897.65-77,135.30

Finding the Fourth Proportional to 147,265.10, 220,897.65 and 77,135.30

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Solution

The fourth proportional to 147,265.10, 220,897.65 and 77,135.30 is: 115,702.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,265.10 : 220,897.65 = 77,135.30 : x
  2. Step 2: Convert to fraction form
    147,265.10/220,897.65 = 77,135.30/x
  3. Step 3: Cross multiply
    147,265.10x = 220,897.65 × 77,135.30
  4. Step 4: Simplify right side
    147,265.10x = 17,039,006,502.05
  5. Step 5: Solve for x
    x = 17,039,006,502.05/147,265.10
  6. Step 6: Final answer
    x = 115,702.95

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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.