Home / 124,417.20-186,420.60-71,734.80

Finding the Fourth Proportional to 124,417.20, 186,420.60 and 71,734.80

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Solution

The fourth proportional to 124,417.20, 186,420.60 and 71,734.80 is: 107,483.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,417.20 : 186,420.60 = 71,734.80 : x
  2. Step 2: Convert to fraction form
    124,417.20/186,420.60 = 71,734.80/x
  3. Step 3: Cross multiply
    124,417.20x = 186,420.60 × 71,734.80
  4. Step 4: Simplify right side
    124,417.20x = 13,372,844,456.88
  5. Step 5: Solve for x
    x = 13,372,844,456.88/124,417.20
  6. Step 6: Final answer
    x = 107,483.89

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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.