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Finding the Fourth Proportional to 158,037.29, 217,905.10 and 127,728.89

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Solution

The fourth proportional to 158,037.29, 217,905.10 and 127,728.89 is: 176,115.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,037.29 : 217,905.10 = 127,728.89 : x
  2. Step 2: Convert to fraction form
    158,037.29/217,905.10 = 127,728.89/x
  3. Step 3: Cross multiply
    158,037.29x = 217,905.10 × 127,728.89
  4. Step 4: Simplify right side
    158,037.29x = 27,832,774,820.17
  5. Step 5: Solve for x
    x = 27,832,774,820.17/158,037.29
  6. Step 6: Final answer
    x = 176,115.24

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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.