Home / 120,292.88-165,997.29-66,574.70

Finding the Fourth Proportional to 120,292.88, 165,997.29 and 66,574.70

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Solution

The fourth proportional to 120,292.88, 165,997.29 and 66,574.70 is: 91,869.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,292.88 : 165,997.29 = 66,574.70 : x
  2. Step 2: Convert to fraction form
    120,292.88/165,997.29 = 66,574.70/x
  3. Step 3: Cross multiply
    120,292.88x = 165,997.29 × 66,574.70
  4. Step 4: Simplify right side
    120,292.88x = 11,051,219,782.56
  5. Step 5: Solve for x
    x = 11,051,219,782.56/120,292.88
  6. Step 6: Final answer
    x = 91,869.28

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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.