Home / 99,609.22-137,475.36-65,612.26

Finding the Fourth Proportional to 99,609.22, 137,475.36 and 65,612.26

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Solution

The fourth proportional to 99,609.22, 137,475.36 and 65,612.26 is: 90,554.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,609.22 : 137,475.36 = 65,612.26 : x
  2. Step 2: Convert to fraction form
    99,609.22/137,475.36 = 65,612.26/x
  3. Step 3: Cross multiply
    99,609.22x = 137,475.36 × 65,612.26
  4. Step 4: Simplify right side
    99,609.22x = 9,020,068,048.48
  5. Step 5: Solve for x
    x = 9,020,068,048.48/99,609.22
  6. Step 6: Final answer
    x = 90,554.55

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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.