Home / 130,834.10-180,540.77-74,245.48

Finding the Fourth Proportional to 130,834.10, 180,540.77 and 74,245.48

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Solution

The fourth proportional to 130,834.10, 180,540.77 and 74,245.48 is: 102,452.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,834.10 : 180,540.77 = 74,245.48 : x
  2. Step 2: Convert to fraction form
    130,834.10/180,540.77 = 74,245.48/x
  3. Step 3: Cross multiply
    130,834.10x = 180,540.77 × 74,245.48
  4. Step 4: Simplify right side
    130,834.10x = 13,404,334,854.29
  5. Step 5: Solve for x
    x = 13,404,334,854.29/130,834.10
  6. Step 6: Final answer
    x = 102,452.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.