Home / 141,399.04-195,130.80-77,737.92

Finding the Fourth Proportional to 141,399.04, 195,130.80 and 77,737.92

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Solution

The fourth proportional to 141,399.04, 195,130.80 and 77,737.92 is: 107,278.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,399.04 : 195,130.80 = 77,737.92 : x
  2. Step 2: Convert to fraction form
    141,399.04/195,130.80 = 77,737.92/x
  3. Step 3: Cross multiply
    141,399.04x = 195,130.80 × 77,737.92
  4. Step 4: Simplify right side
    141,399.04x = 15,169,062,519.94
  5. Step 5: Solve for x
    x = 15,169,062,519.94/141,399.04
  6. Step 6: Final answer
    x = 107,278.40

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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.