Home / 123,840.20-185,541.60-101,532.80

Finding the Fourth Proportional to 123,840.20, 185,541.60 and 101,532.80

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Solution

The fourth proportional to 123,840.20, 185,541.60 and 101,532.80 is: 152,119.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,840.20 : 185,541.60 = 101,532.80 : x
  2. Step 2: Convert to fraction form
    123,840.20/185,541.60 = 101,532.80/x
  3. Step 3: Cross multiply
    123,840.20x = 185,541.60 × 101,532.80
  4. Step 4: Simplify right side
    123,840.20x = 18,838,558,164.48
  5. Step 5: Solve for x
    x = 18,838,558,164.48/123,840.20
  6. Step 6: Final answer
    x = 152,119.89

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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.