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Finding the Fourth Proportional to 159,505.80, 239,122.80 and 70,710.90

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Solution

The fourth proportional to 159,505.80, 239,122.80 and 70,710.90 is: 106,006.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,505.80 : 239,122.80 = 70,710.90 : x
  2. Step 2: Convert to fraction form
    159,505.80/239,122.80 = 70,710.90/x
  3. Step 3: Cross multiply
    159,505.80x = 239,122.80 × 70,710.90
  4. Step 4: Simplify right side
    159,505.80x = 16,908,588,398.52
  5. Step 5: Solve for x
    x = 16,908,588,398.52/159,505.80
  6. Step 6: Final answer
    x = 106,006.10

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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.