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Finding the Fourth Proportional to 139,534.60, 209,301.84 and 41,038.60

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Solution

The fourth proportional to 139,534.60, 209,301.84 and 41,038.60 is: 61,557.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,534.60 : 209,301.84 = 41,038.60 : x
  2. Step 2: Convert to fraction form
    139,534.60/209,301.84 = 41,038.60/x
  3. Step 3: Cross multiply
    139,534.60x = 209,301.84 × 41,038.60
  4. Step 4: Simplify right side
    139,534.60x = 8,589,454,491.02
  5. Step 5: Solve for x
    x = 8,589,454,491.02/139,534.60
  6. Step 6: Final answer
    x = 61,557.88

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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.