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Finding the Fourth Proportional to 160,694.78, 221,253.84 and 136,444.71

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Solution

The fourth proportional to 160,694.78, 221,253.84 and 136,444.71 is: 187,864.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,694.78 : 221,253.84 = 136,444.71 : x
  2. Step 2: Convert to fraction form
    160,694.78/221,253.84 = 136,444.71/x
  3. Step 3: Cross multiply
    160,694.78x = 221,253.84 × 136,444.71
  4. Step 4: Simplify right side
    160,694.78x = 30,188,915,104.34
  5. Step 5: Solve for x
    x = 30,188,915,104.34/160,694.78
  6. Step 6: Final answer
    x = 187,864.94

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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.