Home / 120,382.71-180,531.45-34,975.80

Finding the Fourth Proportional to 120,382.71, 180,531.45 and 34,975.80

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Solution

The fourth proportional to 120,382.71, 180,531.45 and 34,975.80 is: 52,451.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,382.71 : 180,531.45 = 34,975.80 : x
  2. Step 2: Convert to fraction form
    120,382.71/180,531.45 = 34,975.80/x
  3. Step 3: Cross multiply
    120,382.71x = 180,531.45 × 34,975.80
  4. Step 4: Simplify right side
    120,382.71x = 6,314,231,888.91
  5. Step 5: Solve for x
    x = 6,314,231,888.91/120,382.71
  6. Step 6: Final answer
    x = 52,451.32

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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.