Home / 120,126.04-165,761.24-66,402.40

Finding the Fourth Proportional to 120,126.04, 165,761.24 and 66,402.40

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Solution

The fourth proportional to 120,126.04, 165,761.24 and 66,402.40 is: 91,628.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,126.04 : 165,761.24 = 66,402.40 : x
  2. Step 2: Convert to fraction form
    120,126.04/165,761.24 = 66,402.40/x
  3. Step 3: Cross multiply
    120,126.04x = 165,761.24 × 66,402.40
  4. Step 4: Simplify right side
    120,126.04x = 11,006,944,162.98
  5. Step 5: Solve for x
    x = 11,006,944,162.98/120,126.04
  6. Step 6: Final answer
    x = 91,628.29

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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.