Home / 99,612.22-137,479.50-65,615.26

Finding the Fourth Proportional to 99,612.22, 137,479.50 and 65,615.26

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Solution

The fourth proportional to 99,612.22, 137,479.50 and 65,615.26 is: 90,558.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,612.22 : 137,479.50 = 65,615.26 : x
  2. Step 2: Convert to fraction form
    99,612.22/137,479.50 = 65,615.26/x
  3. Step 3: Cross multiply
    99,612.22x = 137,479.50 × 65,615.26
  4. Step 4: Simplify right side
    99,612.22x = 9,020,753,137.17
  5. Step 5: Solve for x
    x = 9,020,753,137.17/99,612.22
  6. Step 6: Final answer
    x = 90,558.70

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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.