Home / 139,813.19-209,750.92-51,066.55

Finding the Fourth Proportional to 139,813.19, 209,750.92 and 51,066.55

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Solution

The fourth proportional to 139,813.19, 209,750.92 and 51,066.55 is: 76,611.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,813.19 : 209,750.92 = 51,066.55 : x
  2. Step 2: Convert to fraction form
    139,813.19/209,750.92 = 51,066.55/x
  3. Step 3: Cross multiply
    139,813.19x = 209,750.92 × 51,066.55
  4. Step 4: Simplify right side
    139,813.19x = 10,711,255,978.25
  5. Step 5: Solve for x
    x = 10,711,255,978.25/139,813.19
  6. Step 6: Final answer
    x = 76,611.20

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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.