Home / 103,447.32-142,753.25-63,228.39

Finding the Fourth Proportional to 103,447.32, 142,753.25 and 63,228.39

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Solution

The fourth proportional to 103,447.32, 142,753.25 and 63,228.39 is: 87,252.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,447.32 : 142,753.25 = 63,228.39 : x
  2. Step 2: Convert to fraction form
    103,447.32/142,753.25 = 63,228.39/x
  3. Step 3: Cross multiply
    103,447.32x = 142,753.25 × 63,228.39
  4. Step 4: Simplify right side
    103,447.32x = 9,026,058,164.77
  5. Step 5: Solve for x
    x = 9,026,058,164.77/103,447.32
  6. Step 6: Final answer
    x = 87,252.70

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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.