Home / 127,828.30-176,403.78-74,145.16

Finding the Fourth Proportional to 127,828.30, 176,403.78 and 74,145.16

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Solution

The fourth proportional to 127,828.30, 176,403.78 and 74,145.16 is: 102,320.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,828.30 : 176,403.78 = 74,145.16 : x
  2. Step 2: Convert to fraction form
    127,828.30/176,403.78 = 74,145.16/x
  3. Step 3: Cross multiply
    127,828.30x = 176,403.78 × 74,145.16
  4. Step 4: Simplify right side
    127,828.30x = 13,079,486,492.70
  5. Step 5: Solve for x
    x = 13,079,486,492.70/127,828.30
  6. Step 6: Final answer
    x = 102,320.74

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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.