Home / 123,921.32-185,777.48-53,747.78

Finding the Fourth Proportional to 123,921.32, 185,777.48 and 53,747.78

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Solution

The fourth proportional to 123,921.32, 185,777.48 and 53,747.78 is: 80,576.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,921.32 : 185,777.48 = 53,747.78 : x
  2. Step 2: Convert to fraction form
    123,921.32/185,777.48 = 53,747.78/x
  3. Step 3: Cross multiply
    123,921.32x = 185,777.48 × 53,747.78
  4. Step 4: Simplify right side
    123,921.32x = 9,985,127,123.99
  5. Step 5: Solve for x
    x = 9,985,127,123.99/123,921.32
  6. Step 6: Final answer
    x = 80,576.35

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1.5x scale

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.