Home / 181,979.20-251,124.80-101,402.56

Finding the Fourth Proportional to 181,979.20, 251,124.80 and 101,402.56

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Solution

The fourth proportional to 181,979.20, 251,124.80 and 101,402.56 is: 139,931.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,979.20 : 251,124.80 = 101,402.56 : x
  2. Step 2: Convert to fraction form
    181,979.20/251,124.80 = 101,402.56/x
  3. Step 3: Cross multiply
    181,979.20x = 251,124.80 × 101,402.56
  4. Step 4: Simplify right side
    181,979.20x = 25,464,697,599.49
  5. Step 5: Solve for x
    x = 25,464,697,599.49/181,979.20
  6. Step 6: Final answer
    x = 139,931.91

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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.