Home / 98,614.30-136,088.60-91,080.08

Finding the Fourth Proportional to 98,614.30, 136,088.60 and 91,080.08

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Solution

The fourth proportional to 98,614.30, 136,088.60 and 91,080.08 is: 125,691.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,614.30 : 136,088.60 = 91,080.08 : x
  2. Step 2: Convert to fraction form
    98,614.30/136,088.60 = 91,080.08/x
  3. Step 3: Cross multiply
    98,614.30x = 136,088.60 × 91,080.08
  4. Step 4: Simplify right side
    98,614.30x = 12,394,960,575.09
  5. Step 5: Solve for x
    x = 12,394,960,575.09/98,614.30
  6. Step 6: Final answer
    x = 125,691.31

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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.