Home / 127,178.64-175,487.04-76,179.42

Finding the Fourth Proportional to 127,178.64, 175,487.04 and 76,179.42

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Solution

The fourth proportional to 127,178.64, 175,487.04 and 76,179.42 is: 105,115.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,178.64 : 175,487.04 = 76,179.42 : x
  2. Step 2: Convert to fraction form
    127,178.64/175,487.04 = 76,179.42/x
  3. Step 3: Cross multiply
    127,178.64x = 175,487.04 × 76,179.42
  4. Step 4: Simplify right side
    127,178.64x = 13,368,500,924.72
  5. Step 5: Solve for x
    x = 13,368,500,924.72/127,178.64
  6. Step 6: Final answer
    x = 105,115.93

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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.