Home / 125,851.60-173,679.24-72,146.80

Finding the Fourth Proportional to 125,851.60, 173,679.24 and 72,146.80

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Solution

The fourth proportional to 125,851.60, 173,679.24 and 72,146.80 is: 99,564.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,851.60 : 173,679.24 = 72,146.80 : x
  2. Step 2: Convert to fraction form
    125,851.60/173,679.24 = 72,146.80/x
  3. Step 3: Cross multiply
    125,851.60x = 173,679.24 × 72,146.80
  4. Step 4: Simplify right side
    125,851.60x = 12,530,401,392.43
  5. Step 5: Solve for x
    x = 12,530,401,392.43/125,851.60
  6. Step 6: Final answer
    x = 99,564.90

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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.