Home / 120,445.38-180,615.69-64,273.05

Finding the Fourth Proportional to 120,445.38, 180,615.69 and 64,273.05

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Solution

The fourth proportional to 120,445.38, 180,615.69 and 64,273.05 is: 96,381.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,445.38 : 180,615.69 = 64,273.05 : x
  2. Step 2: Convert to fraction form
    120,445.38/180,615.69 = 64,273.05/x
  3. Step 3: Cross multiply
    120,445.38x = 180,615.69 × 64,273.05
  4. Step 4: Simplify right side
    120,445.38x = 11,608,721,274.15
  5. Step 5: Solve for x
    x = 11,608,721,274.15/120,445.38
  6. Step 6: Final answer
    x = 96,381.62

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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.