Home / 121,031.24-181,472.79-49,931.87

Finding the Fourth Proportional to 121,031.24, 181,472.79 and 49,931.87

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Solution

The fourth proportional to 121,031.24, 181,472.79 and 49,931.87 is: 74,867.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,031.24 : 181,472.79 = 49,931.87 : x
  2. Step 2: Convert to fraction form
    121,031.24/181,472.79 = 49,931.87/x
  3. Step 3: Cross multiply
    121,031.24x = 181,472.79 × 49,931.87
  4. Step 4: Simplify right side
    121,031.24x = 9,061,275,758.82
  5. Step 5: Solve for x
    x = 9,061,275,758.82/121,031.24
  6. Step 6: Final answer
    x = 74,867.25

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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.