Home / 130,007.70-195,011.55-115,233.30

Finding the Fourth Proportional to 130,007.70, 195,011.55 and 115,233.30

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Solution

The fourth proportional to 130,007.70, 195,011.55 and 115,233.30 is: 172,849.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,007.70 : 195,011.55 = 115,233.30 : x
  2. Step 2: Convert to fraction form
    130,007.70/195,011.55 = 115,233.30/x
  3. Step 3: Cross multiply
    130,007.70x = 195,011.55 × 115,233.30
  4. Step 4: Simplify right side
    130,007.70x = 22,471,824,444.62
  5. Step 5: Solve for x
    x = 22,471,824,444.62/130,007.70
  6. Step 6: Final answer
    x = 172,849.95

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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.