Home / 130,229.04-179,651.12-87,713.76

Finding the Fourth Proportional to 130,229.04, 179,651.12 and 87,713.76

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Solution

The fourth proportional to 130,229.04, 179,651.12 and 87,713.76 is: 121,001.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,229.04 : 179,651.12 = 87,713.76 : x
  2. Step 2: Convert to fraction form
    130,229.04/179,651.12 = 87,713.76/x
  3. Step 3: Cross multiply
    130,229.04x = 179,651.12 × 87,713.76
  4. Step 4: Simplify right side
    130,229.04x = 15,757,875,223.41
  5. Step 5: Solve for x
    x = 15,757,875,223.41/130,229.04
  6. Step 6: Final answer
    x = 121,001.24

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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.