Home / 218,713.10-328,069.65-125,152.70

Finding the Fourth Proportional to 218,713.10, 328,069.65 and 125,152.70

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Solution

The fourth proportional to 218,713.10, 328,069.65 and 125,152.70 is: 187,729.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,713.10 : 328,069.65 = 125,152.70 : x
  2. Step 2: Convert to fraction form
    218,713.10/328,069.65 = 125,152.70/x
  3. Step 3: Cross multiply
    218,713.10x = 328,069.65 × 125,152.70
  4. Step 4: Simplify right side
    218,713.10x = 41,058,802,485.56
  5. Step 5: Solve for x
    x = 41,058,802,485.56/218,713.10
  6. Step 6: Final answer
    x = 187,729.05

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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.