Home / 125,015.82-172,517.52-71,318.22

Finding the Fourth Proportional to 125,015.82, 172,517.52 and 71,318.22

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Solution

The fourth proportional to 125,015.82, 172,517.52 and 71,318.22 is: 98,416.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,015.82 : 172,517.52 = 71,318.22 : x
  2. Step 2: Convert to fraction form
    125,015.82/172,517.52 = 71,318.22/x
  3. Step 3: Cross multiply
    125,015.82x = 172,517.52 × 71,318.22
  4. Step 4: Simplify right side
    125,015.82x = 12,303,642,445.21
  5. Step 5: Solve for x
    x = 12,303,642,445.21/125,015.82
  6. Step 6: Final answer
    x = 98,416.68

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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.