Home / 413,139.60-619,795.80-132,685.20

Finding the Fourth Proportional to 413,139.60, 619,795.80 and 132,685.20

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Solution

The fourth proportional to 413,139.60, 619,795.80 and 132,685.20 is: 199,055.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,139.60 : 619,795.80 = 132,685.20 : x
  2. Step 2: Convert to fraction form
    413,139.60/619,795.80 = 132,685.20/x
  3. Step 3: Cross multiply
    413,139.60x = 619,795.80 × 132,685.20
  4. Step 4: Simplify right side
    413,139.60x = 82,237,729,682.16
  5. Step 5: Solve for x
    x = 82,237,729,682.16/413,139.60
  6. Step 6: Final answer
    x = 199,055.55

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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.