Home / 240,568.96-331,982.72-133,139.20

Finding the Fourth Proportional to 240,568.96, 331,982.72 and 133,139.20

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Solution

The fourth proportional to 240,568.96, 331,982.72 and 133,139.20 is: 183,730.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,568.96 : 331,982.72 = 133,139.20 : x
  2. Step 2: Convert to fraction form
    240,568.96/331,982.72 = 133,139.20/x
  3. Step 3: Cross multiply
    240,568.96x = 331,982.72 × 133,139.20
  4. Step 4: Simplify right side
    240,568.96x = 44,199,913,754.62
  5. Step 5: Solve for x
    x = 44,199,913,754.62/240,568.96
  6. Step 6: Final answer
    x = 183,730.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.