Home / 141,292.08-194,979.15-77,629.86

Finding the Fourth Proportional to 141,292.08, 194,979.15 and 77,629.86

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Solution

The fourth proportional to 141,292.08, 194,979.15 and 77,629.86 is: 107,127.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,292.08 : 194,979.15 = 77,629.86 : x
  2. Step 2: Convert to fraction form
    141,292.08/194,979.15 = 77,629.86/x
  3. Step 3: Cross multiply
    141,292.08x = 194,979.15 × 77,629.86
  4. Step 4: Simplify right side
    141,292.08x = 15,136,204,117.42
  5. Step 5: Solve for x
    x = 15,136,204,117.42/141,292.08
  6. Step 6: Final answer
    x = 107,127.05

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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.