Home / 185,801.10-278,701.65-129,813.90

Finding the Fourth Proportional to 185,801.10, 278,701.65 and 129,813.90

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Solution

The fourth proportional to 185,801.10, 278,701.65 and 129,813.90 is: 194,720.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,801.10 : 278,701.65 = 129,813.90 : x
  2. Step 2: Convert to fraction form
    185,801.10/278,701.65 = 129,813.90/x
  3. Step 3: Cross multiply
    185,801.10x = 278,701.65 × 129,813.90
  4. Step 4: Simplify right side
    185,801.10x = 36,179,348,122.94
  5. Step 5: Solve for x
    x = 36,179,348,122.94/185,801.10
  6. Step 6: Final answer
    x = 194,720.85

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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.