Home / 120,565.26-180,810.96-83,364.39

Finding the Fourth Proportional to 120,565.26, 180,810.96 and 83,364.39

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Solution

The fourth proportional to 120,565.26, 180,810.96 and 83,364.39 is: 125,021.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,565.26 : 180,810.96 = 83,364.39 : x
  2. Step 2: Convert to fraction form
    120,565.26/180,810.96 = 83,364.39/x
  3. Step 3: Cross multiply
    120,565.26x = 180,810.96 × 83,364.39
  4. Step 4: Simplify right side
    120,565.26x = 15,073,195,420.92
  5. Step 5: Solve for x
    x = 15,073,195,420.92/120,565.26
  6. Step 6: Final answer
    x = 125,021.05

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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.