Home / 141,583.45-195,385.05-77,921.30

Finding the Fourth Proportional to 141,583.45, 195,385.05 and 77,921.30

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Solution

The fourth proportional to 141,583.45, 195,385.05 and 77,921.30 is: 107,531.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,583.45 : 195,385.05 = 77,921.30 : x
  2. Step 2: Convert to fraction form
    141,583.45/195,385.05 = 77,921.30/x
  3. Step 3: Cross multiply
    141,583.45x = 195,385.05 × 77,921.30
  4. Step 4: Simplify right side
    141,583.45x = 15,224,657,096.57
  5. Step 5: Solve for x
    x = 15,224,657,096.57/141,583.45
  6. Step 6: Final answer
    x = 107,531.33

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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.