Home / 141,721.08-195,575.08-78,058.88

Finding the Fourth Proportional to 141,721.08, 195,575.08 and 78,058.88

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Solution

The fourth proportional to 141,721.08, 195,575.08 and 78,058.88 is: 107,721.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,721.08 : 195,575.08 = 78,058.88 : x
  2. Step 2: Convert to fraction form
    141,721.08/195,575.08 = 78,058.88/x
  3. Step 3: Cross multiply
    141,721.08x = 195,575.08 × 78,058.88
  4. Step 4: Simplify right side
    141,721.08x = 15,266,371,211.77
  5. Step 5: Solve for x
    x = 15,266,371,211.77/141,721.08
  6. Step 6: Final answer
    x = 107,721.25

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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.