Home / 139,517.55-209,271.66-60,631.78

Finding the Fourth Proportional to 139,517.55, 209,271.66 and 60,631.78

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Solution

The fourth proportional to 139,517.55, 209,271.66 and 60,631.78 is: 90,945.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,517.55 : 209,271.66 = 60,631.78 : x
  2. Step 2: Convert to fraction form
    139,517.55/209,271.66 = 60,631.78/x
  3. Step 3: Cross multiply
    139,517.55x = 209,271.66 × 60,631.78
  4. Step 4: Simplify right side
    139,517.55x = 12,688,513,249.35
  5. Step 5: Solve for x
    x = 12,688,513,249.35/139,517.55
  6. Step 6: Final answer
    x = 90,945.64

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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.