Home / 139,518.34-209,255.11-38,292.75

Finding the Fourth Proportional to 139,518.34, 209,255.11 and 38,292.75

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Solution

The fourth proportional to 139,518.34, 209,255.11 and 38,292.75 is: 57,432.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,518.34 : 209,255.11 = 38,292.75 : x
  2. Step 2: Convert to fraction form
    139,518.34/209,255.11 = 38,292.75/x
  3. Step 3: Cross multiply
    139,518.34x = 209,255.11 × 38,292.75
  4. Step 4: Simplify right side
    139,518.34x = 8,012,953,517.72
  5. Step 5: Solve for x
    x = 8,012,953,517.72/139,518.34
  6. Step 6: Final answer
    x = 57,432.98

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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.