Home / 97,252.20-145,878.30-90,691.20

Finding the Fourth Proportional to 97,252.20, 145,878.30 and 90,691.20

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Solution

The fourth proportional to 97,252.20, 145,878.30 and 90,691.20 is: 136,036.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,252.20 : 145,878.30 = 90,691.20 : x
  2. Step 2: Convert to fraction form
    97,252.20/145,878.30 = 90,691.20/x
  3. Step 3: Cross multiply
    97,252.20x = 145,878.30 × 90,691.20
  4. Step 4: Simplify right side
    97,252.20x = 13,229,878,080.96
  5. Step 5: Solve for x
    x = 13,229,878,080.96/97,252.20
  6. Step 6: Final answer
    x = 136,036.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.