Home / 125,405.28-188,118.88-41,140.20

Finding the Fourth Proportional to 125,405.28, 188,118.88 and 41,140.20

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Solution

The fourth proportional to 125,405.28, 188,118.88 and 41,140.20 is: 61,713.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,405.28 : 188,118.88 = 41,140.20 : x
  2. Step 2: Convert to fraction form
    125,405.28/188,118.88 = 41,140.20/x
  3. Step 3: Cross multiply
    125,405.28x = 188,118.88 × 41,140.20
  4. Step 4: Simplify right side
    125,405.28x = 7,739,248,346.98
  5. Step 5: Solve for x
    x = 7,739,248,346.98/125,405.28
  6. Step 6: Final answer
    x = 61,713.90

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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.