Home / 120,781.47-166,675.23-67,065.12

Finding the Fourth Proportional to 120,781.47, 166,675.23 and 67,065.12

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Solution

The fourth proportional to 120,781.47, 166,675.23 and 67,065.12 is: 92,548.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,781.47 : 166,675.23 = 67,065.12 : x
  2. Step 2: Convert to fraction form
    120,781.47/166,675.23 = 67,065.12/x
  3. Step 3: Cross multiply
    120,781.47x = 166,675.23 × 67,065.12
  4. Step 4: Simplify right side
    120,781.47x = 11,178,094,300.98
  5. Step 5: Solve for x
    x = 11,178,094,300.98/120,781.47
  6. Step 6: Final answer
    x = 92,548.09

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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.