Home / 121,402.20-182,006.10-51,223.80

Finding the Fourth Proportional to 121,402.20, 182,006.10 and 51,223.80

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Solution

The fourth proportional to 121,402.20, 182,006.10 and 51,223.80 is: 76,794.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,402.20 : 182,006.10 = 51,223.80 : x
  2. Step 2: Convert to fraction form
    121,402.20/182,006.10 = 51,223.80/x
  3. Step 3: Cross multiply
    121,402.20x = 182,006.10 × 51,223.80
  4. Step 4: Simplify right side
    121,402.20x = 9,323,044,065.18
  5. Step 5: Solve for x
    x = 9,323,044,065.18/121,402.20
  6. Step 6: Final answer
    x = 76,794.69

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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.