Home / 141,478.59-195,240.56-77,821.23

Finding the Fourth Proportional to 141,478.59, 195,240.56 and 77,821.23

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Solution

The fourth proportional to 141,478.59, 195,240.56 and 77,821.23 is: 107,393.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,478.59 : 195,240.56 = 77,821.23 : x
  2. Step 2: Convert to fraction form
    141,478.59/195,240.56 = 77,821.23/x
  3. Step 3: Cross multiply
    141,478.59x = 195,240.56 × 77,821.23
  4. Step 4: Simplify right side
    141,478.59x = 15,193,860,135.98
  5. Step 5: Solve for x
    x = 15,193,860,135.98/141,478.59
  6. Step 6: Final answer
    x = 107,393.35

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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.