Home / 126,332.65-189,498.57-86,769.82

Finding the Fourth Proportional to 126,332.65, 189,498.57 and 86,769.82

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Solution

The fourth proportional to 126,332.65, 189,498.57 and 86,769.82 is: 130,154.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,332.65 : 189,498.57 = 86,769.82 : x
  2. Step 2: Convert to fraction form
    126,332.65/189,498.57 = 86,769.82/x
  3. Step 3: Cross multiply
    126,332.65x = 189,498.57 × 86,769.82
  4. Step 4: Simplify right side
    126,332.65x = 16,442,756,809.16
  5. Step 5: Solve for x
    x = 16,442,756,809.16/126,332.65
  6. Step 6: Final answer
    x = 130,154.45

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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.