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Finding the Fourth Proportional to 139,335.77, 209,000.01 and 49,377.17

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Solution

The fourth proportional to 139,335.77, 209,000.01 and 49,377.17 is: 74,064.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,335.77 : 209,000.01 = 49,377.17 : x
  2. Step 2: Convert to fraction form
    139,335.77/209,000.01 = 49,377.17/x
  3. Step 3: Cross multiply
    139,335.77x = 209,000.01 × 49,377.17
  4. Step 4: Simplify right side
    139,335.77x = 10,319,829,023.77
  5. Step 5: Solve for x
    x = 10,319,829,023.77/139,335.77
  6. Step 6: Final answer
    x = 74,064.46

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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.