Home / 120,531.90-180,798.16-36,292.30

Finding the Fourth Proportional to 120,531.90, 180,798.16 and 36,292.30

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Solution

The fourth proportional to 120,531.90, 180,798.16 and 36,292.30 is: 54,438.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,531.90 : 180,798.16 = 36,292.30 : x
  2. Step 2: Convert to fraction form
    120,531.90/180,798.16 = 36,292.30/x
  3. Step 3: Cross multiply
    120,531.90x = 180,798.16 × 36,292.30
  4. Step 4: Simplify right side
    120,531.90x = 6,561,581,062.17
  5. Step 5: Solve for x
    x = 6,561,581,062.17/120,531.90
  6. Step 6: Final answer
    x = 54,438.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.