Home / 239,880.55-331,036.76-130,985.64

Finding the Fourth Proportional to 239,880.55, 331,036.76 and 130,985.64

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Solution

The fourth proportional to 239,880.55, 331,036.76 and 130,985.64 is: 180,761.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,880.55 : 331,036.76 = 130,985.64 : x
  2. Step 2: Convert to fraction form
    239,880.55/331,036.76 = 130,985.64/x
  3. Step 3: Cross multiply
    239,880.55x = 331,036.76 × 130,985.64
  4. Step 4: Simplify right side
    239,880.55x = 43,361,061,872.13
  5. Step 5: Solve for x
    x = 43,361,061,872.13/239,880.55
  6. Step 6: Final answer
    x = 180,761.06

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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.