Home / 136,548.24-204,780.78-47,785.20

Finding the Fourth Proportional to 136,548.24, 204,780.78 and 47,785.20

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Solution

The fourth proportional to 136,548.24, 204,780.78 and 47,785.20 is: 71,663.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,548.24 : 204,780.78 = 47,785.20 : x
  2. Step 2: Convert to fraction form
    136,548.24/204,780.78 = 47,785.20/x
  3. Step 3: Cross multiply
    136,548.24x = 204,780.78 × 47,785.20
  4. Step 4: Simplify right side
    136,548.24x = 9,785,490,528.46
  5. Step 5: Solve for x
    x = 9,785,490,528.46/136,548.24
  6. Step 6: Final answer
    x = 71,663.25

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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.