Home / 141,391.04-195,119.76-77,729.92

Finding the Fourth Proportional to 141,391.04, 195,119.76 and 77,729.92

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Solution

The fourth proportional to 141,391.04, 195,119.76 and 77,729.92 is: 107,267.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,391.04 : 195,119.76 = 77,729.92 : x
  2. Step 2: Convert to fraction form
    141,391.04/195,119.76 = 77,729.92/x
  3. Step 3: Cross multiply
    141,391.04x = 195,119.76 × 77,729.92
  4. Step 4: Simplify right side
    141,391.04x = 15,166,643,335.22
  5. Step 5: Solve for x
    x = 15,166,643,335.22/141,391.04
  6. Step 6: Final answer
    x = 107,267.36

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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.