Home / 138,746.20-208,119.30-50,002.60

Finding the Fourth Proportional to 138,746.20, 208,119.30 and 50,002.60

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Solution

The fourth proportional to 138,746.20, 208,119.30 and 50,002.60 is: 75,003.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,746.20 : 208,119.30 = 50,002.60 : x
  2. Step 2: Convert to fraction form
    138,746.20/208,119.30 = 50,002.60/x
  3. Step 3: Cross multiply
    138,746.20x = 208,119.30 × 50,002.60
  4. Step 4: Simplify right side
    138,746.20x = 10,406,506,110.18
  5. Step 5: Solve for x
    x = 10,406,506,110.18/138,746.20
  6. Step 6: Final answer
    x = 75,003.90

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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.