Home / 442,116.48-662,979.84-126,501.76

Finding the Fourth Proportional to 442,116.48, 662,979.84 and 126,501.76

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Solution

The fourth proportional to 442,116.48, 662,979.84 and 126,501.76 is: 189,696.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,116.48 : 662,979.84 = 126,501.76 : x
  2. Step 2: Convert to fraction form
    442,116.48/662,979.84 = 126,501.76/x
  3. Step 3: Cross multiply
    442,116.48x = 662,979.84 × 126,501.76
  4. Step 4: Simplify right side
    442,116.48x = 83,868,116,604.52
  5. Step 5: Solve for x
    x = 83,868,116,604.52/442,116.48
  6. Step 6: Final answer
    x = 189,696.88

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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.