Home / 120,327.48-180,293.94-85,204.08

Finding the Fourth Proportional to 120,327.48, 180,293.94 and 85,204.08

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Solution

The fourth proportional to 120,327.48, 180,293.94 and 85,204.08 is: 127,666.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,327.48 : 180,293.94 = 85,204.08 : x
  2. Step 2: Convert to fraction form
    120,327.48/180,293.94 = 85,204.08/x
  3. Step 3: Cross multiply
    120,327.48x = 180,293.94 × 85,204.08
  4. Step 4: Simplify right side
    120,327.48x = 15,361,779,287.28
  5. Step 5: Solve for x
    x = 15,361,779,287.28/120,327.48
  6. Step 6: Final answer
    x = 127,666.43

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1.5x scale

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.