Home / 139,821.87-208,676.46-130,341.21

Finding the Fourth Proportional to 139,821.87, 208,676.46 and 130,341.21

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Solution

The fourth proportional to 139,821.87, 208,676.46 and 130,341.21 is: 194,527.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,821.87 : 208,676.46 = 130,341.21 : x
  2. Step 2: Convert to fraction form
    139,821.87/208,676.46 = 130,341.21/x
  3. Step 3: Cross multiply
    139,821.87x = 208,676.46 × 130,341.21
  4. Step 4: Simplify right side
    139,821.87x = 27,199,142,294.92
  5. Step 5: Solve for x
    x = 27,199,142,294.92/139,821.87
  6. Step 6: Final answer
    x = 194,527.10

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.