Home / 142,454.30-213,700.65-48,988.70

Finding the Fourth Proportional to 142,454.30, 213,700.65 and 48,988.70

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Solution

The fourth proportional to 142,454.30, 213,700.65 and 48,988.70 is: 73,489.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,454.30 : 213,700.65 = 48,988.70 : x
  2. Step 2: Convert to fraction form
    142,454.30/213,700.65 = 48,988.70/x
  3. Step 3: Cross multiply
    142,454.30x = 213,700.65 × 48,988.70
  4. Step 4: Simplify right side
    142,454.30x = 10,468,917,032.66
  5. Step 5: Solve for x
    x = 10,468,917,032.66/142,454.30
  6. Step 6: Final answer
    x = 73,489.65

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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.