Home / 125,330.85-172,955.40-67,971.44

Finding the Fourth Proportional to 125,330.85, 172,955.40 and 67,971.44

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Solution

The fourth proportional to 125,330.85, 172,955.40 and 67,971.44 is: 93,799.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,330.85 : 172,955.40 = 67,971.44 : x
  2. Step 2: Convert to fraction form
    125,330.85/172,955.40 = 67,971.44/x
  3. Step 3: Cross multiply
    125,330.85x = 172,955.40 × 67,971.44
  4. Step 4: Simplify right side
    125,330.85x = 11,756,027,423.85
  5. Step 5: Solve for x
    x = 11,756,027,423.85/125,330.85
  6. Step 6: Final answer
    x = 93,799.95

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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.