Home / 127,824.78-176,398.86-74,141.53

Finding the Fourth Proportional to 127,824.78, 176,398.86 and 74,141.53

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Solution

The fourth proportional to 127,824.78, 176,398.86 and 74,141.53 is: 102,315.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,824.78 : 176,398.86 = 74,141.53 : x
  2. Step 2: Convert to fraction form
    127,824.78/176,398.86 = 74,141.53/x
  3. Step 3: Cross multiply
    127,824.78x = 176,398.86 × 74,141.53
  4. Step 4: Simplify right side
    127,824.78x = 13,078,481,207.69
  5. Step 5: Solve for x
    x = 13,078,481,207.69/127,824.78
  6. Step 6: Final answer
    x = 102,315.69

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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.