Home / 141,702.40-195,550.56-78,042.40

Finding the Fourth Proportional to 141,702.40, 195,550.56 and 78,042.40

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Solution

The fourth proportional to 141,702.40, 195,550.56 and 78,042.40 is: 107,699.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,702.40 : 195,550.56 = 78,042.40 : x
  2. Step 2: Convert to fraction form
    141,702.40/195,550.56 = 78,042.40/x
  3. Step 3: Cross multiply
    141,702.40x = 195,550.56 × 78,042.40
  4. Step 4: Simplify right side
    141,702.40x = 15,261,235,023.74
  5. Step 5: Solve for x
    x = 15,261,235,023.74/141,702.40
  6. Step 6: Final answer
    x = 107,699.20

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1.5x scale

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.