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Finding the Fourth Proportional to 139,447.88, 209,169.96 and 34,267.76

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Solution

The fourth proportional to 139,447.88, 209,169.96 and 34,267.76 is: 51,401.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,447.88 : 209,169.96 = 34,267.76 : x
  2. Step 2: Convert to fraction form
    139,447.88/209,169.96 = 34,267.76/x
  3. Step 3: Cross multiply
    139,447.88x = 209,169.96 × 34,267.76
  4. Step 4: Simplify right side
    139,447.88x = 7,167,785,988.49
  5. Step 5: Solve for x
    x = 7,167,785,988.49/139,447.88
  6. Step 6: Final answer
    x = 51,401.18

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1.5x scale

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.