Home / 156,234.79-215,617.28-88,264.23

Finding the Fourth Proportional to 156,234.79, 215,617.28 and 88,264.23

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Solution

The fourth proportional to 156,234.79, 215,617.28 and 88,264.23 is: 121,812.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,234.79 : 215,617.28 = 88,264.23 : x
  2. Step 2: Convert to fraction form
    156,234.79/215,617.28 = 88,264.23/x
  3. Step 3: Cross multiply
    156,234.79x = 215,617.28 × 88,264.23
  4. Step 4: Simplify right side
    156,234.79x = 19,031,293,193.89
  5. Step 5: Solve for x
    x = 19,031,293,193.89/156,234.79
  6. Step 6: Final answer
    x = 121,812.13

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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.