Home / 142,359.02-213,575.70-42,519.23

Finding the Fourth Proportional to 142,359.02, 213,575.70 and 42,519.23

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Solution

The fourth proportional to 142,359.02, 213,575.70 and 42,519.23 is: 63,789.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,359.02 : 213,575.70 = 42,519.23 : x
  2. Step 2: Convert to fraction form
    142,359.02/213,575.70 = 42,519.23/x
  3. Step 3: Cross multiply
    142,359.02x = 213,575.70 × 42,519.23
  4. Step 4: Simplify right side
    142,359.02x = 9,081,074,310.71
  5. Step 5: Solve for x
    x = 9,081,074,310.71/142,359.02
  6. Step 6: Final answer
    x = 63,789.95

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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.