Home / 127,788.75-176,348.46-70,428.06

Finding the Fourth Proportional to 127,788.75, 176,348.46 and 70,428.06

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Solution

The fourth proportional to 127,788.75, 176,348.46 and 70,428.06 is: 97,190.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,788.75 : 176,348.46 = 70,428.06 : x
  2. Step 2: Convert to fraction form
    127,788.75/176,348.46 = 70,428.06/x
  3. Step 3: Cross multiply
    127,788.75x = 176,348.46 × 70,428.06
  4. Step 4: Simplify right side
    127,788.75x = 12,419,879,921.79
  5. Step 5: Solve for x
    x = 12,419,879,921.79/127,788.75
  6. Step 6: Final answer
    x = 97,190.71

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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.