Home / 125,453.40-173,134.78-82,938.20

Finding the Fourth Proportional to 125,453.40, 173,134.78 and 82,938.20

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Solution

The fourth proportional to 125,453.40, 173,134.78 and 82,938.20 is: 114,460.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,453.40 : 173,134.78 = 82,938.20 : x
  2. Step 2: Convert to fraction form
    125,453.40/173,134.78 = 82,938.20/x
  3. Step 3: Cross multiply
    125,453.40x = 173,134.78 × 82,938.20
  4. Step 4: Simplify right side
    125,453.40x = 14,359,487,010.60
  5. Step 5: Solve for x
    x = 14,359,487,010.60/125,453.40
  6. Step 6: Final answer
    x = 114,460.72

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1.5x scale

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.