Home / 123,948.20-185,703.60-101,640.80

Finding the Fourth Proportional to 123,948.20, 185,703.60 and 101,640.80

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Solution

The fourth proportional to 123,948.20, 185,703.60 and 101,640.80 is: 152,281.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,948.20 : 185,703.60 = 101,640.80 : x
  2. Step 2: Convert to fraction form
    123,948.20/185,703.60 = 101,640.80/x
  3. Step 3: Cross multiply
    123,948.20x = 185,703.60 × 101,640.80
  4. Step 4: Simplify right side
    123,948.20x = 18,875,062,466.88
  5. Step 5: Solve for x
    x = 18,875,062,466.88/123,948.20
  6. Step 6: Final answer
    x = 152,281.86

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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.