Home / 103,391.28-142,669.89-58,058.96

Finding the Fourth Proportional to 103,391.28, 142,669.89 and 58,058.96

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Solution

The fourth proportional to 103,391.28, 142,669.89 and 58,058.96 is: 80,115.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,391.28 : 142,669.89 = 58,058.96 : x
  2. Step 2: Convert to fraction form
    103,391.28/142,669.89 = 58,058.96/x
  3. Step 3: Cross multiply
    103,391.28x = 142,669.89 × 58,058.96
  4. Step 4: Simplify right side
    103,391.28x = 8,283,264,723.36
  5. Step 5: Solve for x
    x = 8,283,264,723.36/103,391.28
  6. Step 6: Final answer
    x = 80,115.70

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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.