Home / 142,511.78-213,663.99-92,641.70

Finding the Fourth Proportional to 142,511.78, 213,663.99 and 92,641.70

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Solution

The fourth proportional to 142,511.78, 213,663.99 and 92,641.70 is: 138,895.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,511.78 : 213,663.99 = 92,641.70 : x
  2. Step 2: Convert to fraction form
    142,511.78/213,663.99 = 92,641.70/x
  3. Step 3: Cross multiply
    142,511.78x = 213,663.99 × 92,641.70
  4. Step 4: Simplify right side
    142,511.78x = 19,794,195,262.38
  5. Step 5: Solve for x
    x = 19,794,195,262.38/142,511.78
  6. Step 6: Final answer
    x = 138,895.15

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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.