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Finding the Fourth Proportional to 159,885.60, 239,828.40 and 114,979.20

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Solution

The fourth proportional to 159,885.60, 239,828.40 and 114,979.20 is: 172,468.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,885.60 : 239,828.40 = 114,979.20 : x
  2. Step 2: Convert to fraction form
    159,885.60/239,828.40 = 114,979.20/x
  3. Step 3: Cross multiply
    159,885.60x = 239,828.40 × 114,979.20
  4. Step 4: Simplify right side
    159,885.60x = 27,575,277,569.28
  5. Step 5: Solve for x
    x = 27,575,277,569.28/159,885.60
  6. Step 6: Final answer
    x = 172,468.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.