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Finding the Fourth Proportional to 139,552.80, 209,329.20 and 44,782.80

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Solution

The fourth proportional to 139,552.80, 209,329.20 and 44,782.80 is: 67,174.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,552.80 : 209,329.20 = 44,782.80 : x
  2. Step 2: Convert to fraction form
    139,552.80/209,329.20 = 44,782.80/x
  3. Step 3: Cross multiply
    139,552.80x = 209,329.20 × 44,782.80
  4. Step 4: Simplify right side
    139,552.80x = 9,374,347,697.76
  5. Step 5: Solve for x
    x = 9,374,347,697.76/139,552.80
  6. Step 6: Final answer
    x = 67,174.20

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1.5x scale

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.