Home / 181,931.40-251,083.80-101,372.04

Finding the Fourth Proportional to 181,931.40, 251,083.80 and 101,372.04

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Solution

The fourth proportional to 181,931.40, 251,083.80 and 101,372.04 is: 139,903.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,931.40 : 251,083.80 = 101,372.04 : x
  2. Step 2: Convert to fraction form
    181,931.40/251,083.80 = 101,372.04/x
  3. Step 3: Cross multiply
    181,931.40x = 251,083.80 × 101,372.04
  4. Step 4: Simplify right side
    181,931.40x = 25,452,877,016.95
  5. Step 5: Solve for x
    x = 25,452,877,016.95/181,931.40
  6. Step 6: Final answer
    x = 139,903.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.