Home / 127,787.25-176,346.39-70,426.56

Finding the Fourth Proportional to 127,787.25, 176,346.39 and 70,426.56

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Solution

The fourth proportional to 127,787.25, 176,346.39 and 70,426.56 is: 97,188.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,787.25 : 176,346.39 = 70,426.56 : x
  2. Step 2: Convert to fraction form
    127,787.25/176,346.39 = 70,426.56/x
  3. Step 3: Cross multiply
    127,787.25x = 176,346.39 × 70,426.56
  4. Step 4: Simplify right side
    127,787.25x = 12,419,470,343.44
  5. Step 5: Solve for x
    x = 12,419,470,343.44/127,787.25
  6. Step 6: Final answer
    x = 97,188.65

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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.