Home / 141,385.04-195,111.48-77,723.92

Finding the Fourth Proportional to 141,385.04, 195,111.48 and 77,723.92

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Solution

The fourth proportional to 141,385.04, 195,111.48 and 77,723.92 is: 107,259.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,385.04 : 195,111.48 = 77,723.92 : x
  2. Step 2: Convert to fraction form
    141,385.04/195,111.48 = 77,723.92/x
  3. Step 3: Cross multiply
    141,385.04x = 195,111.48 × 77,723.92
  4. Step 4: Simplify right side
    141,385.04x = 15,164,829,062.60
  5. Step 5: Solve for x
    x = 15,164,829,062.60/141,385.04
  6. Step 6: Final answer
    x = 107,259.08

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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.