Home / 123,946.20-185,700.60-101,638.80

Finding the Fourth Proportional to 123,946.20, 185,700.60 and 101,638.80

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Solution

The fourth proportional to 123,946.20, 185,700.60 and 101,638.80 is: 152,278.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,946.20 : 185,700.60 = 101,638.80 : x
  2. Step 2: Convert to fraction form
    123,946.20/185,700.60 = 101,638.80/x
  3. Step 3: Cross multiply
    123,946.20x = 185,700.60 × 101,638.80
  4. Step 4: Simplify right side
    123,946.20x = 18,874,386,143.28
  5. Step 5: Solve for x
    x = 18,874,386,143.28/123,946.20
  6. Step 6: Final answer
    x = 152,278.86

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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.