Home / 138,829.44-208,244.10-45,335.19

Finding the Fourth Proportional to 138,829.44, 208,244.10 and 45,335.19

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Solution

The fourth proportional to 138,829.44, 208,244.10 and 45,335.19 is: 68,002.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,829.44 : 208,244.10 = 45,335.19 : x
  2. Step 2: Convert to fraction form
    138,829.44/208,244.10 = 45,335.19/x
  3. Step 3: Cross multiply
    138,829.44x = 208,244.10 × 45,335.19
  4. Step 4: Simplify right side
    138,829.44x = 9,440,785,839.88
  5. Step 5: Solve for x
    x = 9,440,785,839.88/138,829.44
  6. Step 6: Final answer
    x = 68,002.77

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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.