Home / 141,439.52-195,191.76-77,782.88

Finding the Fourth Proportional to 141,439.52, 195,191.76 and 77,782.88

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Solution

The fourth proportional to 141,439.52, 195,191.76 and 77,782.88 is: 107,343.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,439.52 : 195,191.76 = 77,782.88 : x
  2. Step 2: Convert to fraction form
    141,439.52/195,191.76 = 77,782.88/x
  3. Step 3: Cross multiply
    141,439.52x = 195,191.76 × 77,782.88
  4. Step 4: Simplify right side
    141,439.52x = 15,182,577,245.07
  5. Step 5: Solve for x
    x = 15,182,577,245.07/141,439.52
  6. Step 6: Final answer
    x = 107,343.25

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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.