Home / 124,201.60-186,302.40-74,435.20

Finding the Fourth Proportional to 124,201.60, 186,302.40 and 74,435.20

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Solution

The fourth proportional to 124,201.60, 186,302.40 and 74,435.20 is: 111,652.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,201.60 : 186,302.40 = 74,435.20 : x
  2. Step 2: Convert to fraction form
    124,201.60/186,302.40 = 74,435.20/x
  3. Step 3: Cross multiply
    124,201.60x = 186,302.40 × 74,435.20
  4. Step 4: Simplify right side
    124,201.60x = 13,867,456,404.48
  5. Step 5: Solve for x
    x = 13,867,456,404.48/124,201.60
  6. Step 6: Final answer
    x = 111,652.80

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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.