Home / 156,436.32-215,767.41-102,701.76

Finding the Fourth Proportional to 156,436.32, 215,767.41 and 102,701.76

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Solution

The fourth proportional to 156,436.32, 215,767.41 and 102,701.76 is: 141,653.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,436.32 : 215,767.41 = 102,701.76 : x
  2. Step 2: Convert to fraction form
    156,436.32/215,767.41 = 102,701.76/x
  3. Step 3: Cross multiply
    156,436.32x = 215,767.41 × 102,701.76
  4. Step 4: Simplify right side
    156,436.32x = 22,159,692,757.64
  5. Step 5: Solve for x
    x = 22,159,692,757.64/156,436.32
  6. Step 6: Final answer
    x = 141,653.12

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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.