Home / 120,613.35-166,444.16-66,165.75

Finding the Fourth Proportional to 120,613.35, 166,444.16 and 66,165.75

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Solution

The fourth proportional to 120,613.35, 166,444.16 and 66,165.75 is: 91,307.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,613.35 : 166,444.16 = 66,165.75 : x
  2. Step 2: Convert to fraction form
    120,613.35/166,444.16 = 66,165.75/x
  3. Step 3: Cross multiply
    120,613.35x = 166,444.16 × 66,165.75
  4. Step 4: Simplify right side
    120,613.35x = 11,012,902,348.69
  5. Step 5: Solve for x
    x = 11,012,902,348.69/120,613.35
  6. Step 6: Final answer
    x = 91,307.49

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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.