Home / 120,672.45-166,560.29-75,323.13

Finding the Fourth Proportional to 120,672.45, 166,560.29 and 75,323.13

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Solution

The fourth proportional to 120,672.45, 166,560.29 and 75,323.13 is: 103,966.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,672.45 : 166,560.29 = 75,323.13 : x
  2. Step 2: Convert to fraction form
    120,672.45/166,560.29 = 75,323.13/x
  3. Step 3: Cross multiply
    120,672.45x = 166,560.29 × 75,323.13
  4. Step 4: Simplify right side
    120,672.45x = 12,545,841,167.09
  5. Step 5: Solve for x
    x = 12,545,841,167.09/120,672.45
  6. Step 6: Final answer
    x = 103,966.08

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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.