Home / 142,651.17-213,979.19-53,946.45

Finding the Fourth Proportional to 142,651.17, 213,979.19 and 53,946.45

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Solution

The fourth proportional to 142,651.17, 213,979.19 and 53,946.45 is: 80,920.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,651.17 : 213,979.19 = 53,946.45 : x
  2. Step 2: Convert to fraction form
    142,651.17/213,979.19 = 53,946.45/x
  3. Step 3: Cross multiply
    142,651.17x = 213,979.19 × 53,946.45
  4. Step 4: Simplify right side
    142,651.17x = 11,543,417,404.64
  5. Step 5: Solve for x
    x = 11,543,417,404.64/142,651.17
  6. Step 6: Final answer
    x = 80,920.59

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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.