Home / 124,281.47-186,402.97-68,149.28

Finding the Fourth Proportional to 124,281.47, 186,402.97 and 68,149.28

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Solution

The fourth proportional to 124,281.47, 186,402.97 and 68,149.28 is: 102,213.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,281.47 : 186,402.97 = 68,149.28 : x
  2. Step 2: Convert to fraction form
    124,281.47/186,402.97 = 68,149.28/x
  3. Step 3: Cross multiply
    124,281.47x = 186,402.97 × 68,149.28
  4. Step 4: Simplify right side
    124,281.47x = 12,703,228,746.56
  5. Step 5: Solve for x
    x = 12,703,228,746.56/124,281.47
  6. Step 6: Final answer
    x = 102,213.37

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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.