Home / 123,899.20-185,897.40-45,021.40

Finding the Fourth Proportional to 123,899.20, 185,897.40 and 45,021.40

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Solution

The fourth proportional to 123,899.20, 185,897.40 and 45,021.40 is: 67,549.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,899.20 : 185,897.40 = 45,021.40 : x
  2. Step 2: Convert to fraction form
    123,899.20/185,897.40 = 45,021.40/x
  3. Step 3: Cross multiply
    123,899.20x = 185,897.40 × 45,021.40
  4. Step 4: Simplify right side
    123,899.20x = 8,369,361,204.36
  5. Step 5: Solve for x
    x = 8,369,361,204.36/123,899.20
  6. Step 6: Final answer
    x = 67,549.76

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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.