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Finding the Fourth Proportional to 156,002.48, 215,264.90 and 88,015.48

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Solution

The fourth proportional to 156,002.48, 215,264.90 and 88,015.48 is: 121,450.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,002.48 : 215,264.90 = 88,015.48 : x
  2. Step 2: Convert to fraction form
    156,002.48/215,264.90 = 88,015.48/x
  3. Step 3: Cross multiply
    156,002.48x = 215,264.90 × 88,015.48
  4. Step 4: Simplify right side
    156,002.48x = 18,946,643,500.65
  5. Step 5: Solve for x
    x = 18,946,643,500.65/156,002.48
  6. Step 6: Final answer
    x = 121,450.91

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1.5x scale

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.