Home / 125,595.24-173,320.92-71,880

Finding the Fourth Proportional to 125,595.24, 173,320.92 and 71,880

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Solution

The fourth proportional to 125,595.24, 173,320.92 and 71,880 is: 99,194.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,595.24 : 173,320.92 = 71,880 : x
  2. Step 2: Convert to fraction form
    125,595.24/173,320.92 = 71,880/x
  3. Step 3: Cross multiply
    125,595.24x = 173,320.92 × 71,880
  4. Step 4: Simplify right side
    125,595.24x = 12,458,307,729.60
  5. Step 5: Solve for x
    x = 12,458,307,729.60/125,595.24
  6. Step 6: Final answer
    x = 99,194.11

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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.