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Finding the Fourth Proportional to 88,686.10, 133,029.15 and 83,437.30

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Solution

The fourth proportional to 88,686.10, 133,029.15 and 83,437.30 is: 125,155.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,686.10 : 133,029.15 = 83,437.30 : x
  2. Step 2: Convert to fraction form
    88,686.10/133,029.15 = 83,437.30/x
  3. Step 3: Cross multiply
    88,686.10x = 133,029.15 × 83,437.30
  4. Step 4: Simplify right side
    88,686.10x = 11,099,593,097.30
  5. Step 5: Solve for x
    x = 11,099,593,097.30/88,686.10
  6. Step 6: Final answer
    x = 125,155.95

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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.