Home / 129,278.82-193,870.24-45,017.36

Finding the Fourth Proportional to 129,278.82, 193,870.24 and 45,017.36

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Solution

The fourth proportional to 129,278.82, 193,870.24 and 45,017.36 is: 67,509.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,278.82 : 193,870.24 = 45,017.36 : x
  2. Step 2: Convert to fraction form
    129,278.82/193,870.24 = 45,017.36/x
  3. Step 3: Cross multiply
    129,278.82x = 193,870.24 × 45,017.36
  4. Step 4: Simplify right side
    129,278.82x = 8,727,526,387.37
  5. Step 5: Solve for x
    x = 8,727,526,387.37/129,278.82
  6. Step 6: Final answer
    x = 67,509.33

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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.