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Finding the Fourth Proportional to 159,600.60, 239,109.30 and 129,857.40

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Solution

The fourth proportional to 159,600.60, 239,109.30 and 129,857.40 is: 194,548.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,600.60 : 239,109.30 = 129,857.40 : x
  2. Step 2: Convert to fraction form
    159,600.60/239,109.30 = 129,857.40/x
  3. Step 3: Cross multiply
    159,600.60x = 239,109.30 × 129,857.40
  4. Step 4: Simplify right side
    159,600.60x = 31,050,112,013.82
  5. Step 5: Solve for x
    x = 31,050,112,013.82/159,600.60
  6. Step 6: Final answer
    x = 194,548.84

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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.