Home / 125,815.06-173,629.56-72,110.44

Finding the Fourth Proportional to 125,815.06, 173,629.56 and 72,110.44

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Solution

The fourth proportional to 125,815.06, 173,629.56 and 72,110.44 is: 99,515.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,815.06 : 173,629.56 = 72,110.44 : x
  2. Step 2: Convert to fraction form
    125,815.06/173,629.56 = 72,110.44/x
  3. Step 3: Cross multiply
    125,815.06x = 173,629.56 × 72,110.44
  4. Step 4: Simplify right side
    125,815.06x = 12,520,503,968.61
  5. Step 5: Solve for x
    x = 12,520,503,968.61/125,815.06
  6. Step 6: Final answer
    x = 99,515.15

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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.