Home / 139,021.96-208,377.42-60,017.80

Finding the Fourth Proportional to 139,021.96, 208,377.42 and 60,017.80

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Solution

The fourth proportional to 139,021.96, 208,377.42 and 60,017.80 is: 89,959.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,021.96 : 208,377.42 = 60,017.80 : x
  2. Step 2: Convert to fraction form
    139,021.96/208,377.42 = 60,017.80/x
  3. Step 3: Cross multiply
    139,021.96x = 208,377.42 × 60,017.80
  4. Step 4: Simplify right side
    139,021.96x = 12,506,354,318.08
  5. Step 5: Solve for x
    x = 12,506,354,318.08/139,021.96
  6. Step 6: Final answer
    x = 89,959.56

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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.