Home / 103,618.47-142,983.31-58,295.48

Finding the Fourth Proportional to 103,618.47, 142,983.31 and 58,295.48

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Solution

The fourth proportional to 103,618.47, 142,983.31 and 58,295.48 is: 80,442.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,618.47 : 142,983.31 = 58,295.48 : x
  2. Step 2: Convert to fraction form
    103,618.47/142,983.31 = 58,295.48/x
  3. Step 3: Cross multiply
    103,618.47x = 142,983.31 × 58,295.48
  4. Step 4: Simplify right side
    103,618.47x = 8,335,279,827.78
  5. Step 5: Solve for x
    x = 8,335,279,827.78/103,618.47
  6. Step 6: Final answer
    x = 80,442.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.