Home / 89,918.90-124,612.80-88,650.44

Finding the Fourth Proportional to 89,918.90, 124,612.80 and 88,650.44

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Solution

The fourth proportional to 89,918.90, 124,612.80 and 88,650.44 is: 122,854.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,918.90 : 124,612.80 = 88,650.44 : x
  2. Step 2: Convert to fraction form
    89,918.90/124,612.80 = 88,650.44/x
  3. Step 3: Cross multiply
    89,918.90x = 124,612.80 × 88,650.44
  4. Step 4: Simplify right side
    89,918.90x = 11,046,979,549.63
  5. Step 5: Solve for x
    x = 11,046,979,549.63/89,918.90
  6. Step 6: Final answer
    x = 122,854.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.