Home / 239,140.72-330,007.44-130,242.59

Finding the Fourth Proportional to 239,140.72, 330,007.44 and 130,242.59

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Solution

The fourth proportional to 239,140.72, 330,007.44 and 130,242.59 is: 179,731.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,140.72 : 330,007.44 = 130,242.59 : x
  2. Step 2: Convert to fraction form
    239,140.72/330,007.44 = 130,242.59/x
  3. Step 3: Cross multiply
    239,140.72x = 330,007.44 × 130,242.59
  4. Step 4: Simplify right side
    239,140.72x = 42,981,023,704.87
  5. Step 5: Solve for x
    x = 42,981,023,704.87/239,140.72
  6. Step 6: Final answer
    x = 179,731.10

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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.