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Finding the Fourth Proportional to 88,734.10, 133,101.15 and 85,234.90

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Solution

The fourth proportional to 88,734.10, 133,101.15 and 85,234.90 is: 127,852.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,734.10 : 133,101.15 = 85,234.90 : x
  2. Step 2: Convert to fraction form
    88,734.10/133,101.15 = 85,234.90/x
  3. Step 3: Cross multiply
    88,734.10x = 133,101.15 × 85,234.90
  4. Step 4: Simplify right side
    88,734.10x = 11,344,863,210.14
  5. Step 5: Solve for x
    x = 11,344,863,210.14/88,734.10
  6. Step 6: Final answer
    x = 127,852.35

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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.