Home / 159,538.10-239,015.55-129,794.90

Finding the Fourth Proportional to 159,538.10, 239,015.55 and 129,794.90

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Solution

The fourth proportional to 159,538.10, 239,015.55 and 129,794.90 is: 194,455.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,538.10 : 239,015.55 = 129,794.90 : x
  2. Step 2: Convert to fraction form
    159,538.10/239,015.55 = 129,794.90/x
  3. Step 3: Cross multiply
    159,538.10x = 239,015.55 × 129,794.90
  4. Step 4: Simplify right side
    159,538.10x = 31,022,999,410.70
  5. Step 5: Solve for x
    x = 31,022,999,410.70/159,538.10
  6. Step 6: Final answer
    x = 194,455.11

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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.