Home / 127,730.24-176,439.84-115,807.04

Finding the Fourth Proportional to 127,730.24, 176,439.84 and 115,807.04

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Solution

The fourth proportional to 127,730.24, 176,439.84 and 115,807.04 is: 159,969.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,730.24 : 176,439.84 = 115,807.04 : x
  2. Step 2: Convert to fraction form
    127,730.24/176,439.84 = 115,807.04/x
  3. Step 3: Cross multiply
    127,730.24x = 176,439.84 × 115,807.04
  4. Step 4: Simplify right side
    127,730.24x = 20,432,975,608.47
  5. Step 5: Solve for x
    x = 20,432,975,608.47/127,730.24
  6. Step 6: Final answer
    x = 159,969.76

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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.