Home / 130,565.74-179,007.30-128,203.78

Finding the Fourth Proportional to 130,565.74, 179,007.30 and 128,203.78

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Solution

The fourth proportional to 130,565.74, 179,007.30 and 128,203.78 is: 175,769.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,565.74 : 179,007.30 = 128,203.78 : x
  2. Step 2: Convert to fraction form
    130,565.74/179,007.30 = 128,203.78/x
  3. Step 3: Cross multiply
    130,565.74x = 179,007.30 × 128,203.78
  4. Step 4: Simplify right side
    130,565.74x = 22,949,412,507.59
  5. Step 5: Solve for x
    x = 22,949,412,507.59/130,565.74
  6. Step 6: Final answer
    x = 175,769.02

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.