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Finding the Fourth Proportional to 139,652.82, 209,512.04 and 46,158.57

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Solution

The fourth proportional to 139,652.82, 209,512.04 and 46,158.57 is: 69,248.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,652.82 : 209,512.04 = 46,158.57 : x
  2. Step 2: Convert to fraction form
    139,652.82/209,512.04 = 46,158.57/x
  3. Step 3: Cross multiply
    139,652.82x = 209,512.04 × 46,158.57
  4. Step 4: Simplify right side
    139,652.82x = 9,670,775,933.39
  5. Step 5: Solve for x
    x = 9,670,775,933.39/139,652.82
  6. Step 6: Final answer
    x = 69,248.70

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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.