Home / 125,356.04-187,857.27-69,221.42

Finding the Fourth Proportional to 125,356.04, 187,857.27 and 69,221.42

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Solution

The fourth proportional to 125,356.04, 187,857.27 and 69,221.42 is: 103,734.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,356.04 : 187,857.27 = 69,221.42 : x
  2. Step 2: Convert to fraction form
    125,356.04/187,857.27 = 69,221.42/x
  3. Step 3: Cross multiply
    125,356.04x = 187,857.27 × 69,221.42
  4. Step 4: Simplify right side
    125,356.04x = 13,003,746,751.90
  5. Step 5: Solve for x
    x = 13,003,746,751.90/125,356.04
  6. Step 6: Final answer
    x = 103,734.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.