Home / 127,166.16-175,434.48-76,836

Finding the Fourth Proportional to 127,166.16, 175,434.48 and 76,836

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Solution

The fourth proportional to 127,166.16, 175,434.48 and 76,836 is: 106,000.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,166.16 : 175,434.48 = 76,836 : x
  2. Step 2: Convert to fraction form
    127,166.16/175,434.48 = 76,836/x
  3. Step 3: Cross multiply
    127,166.16x = 175,434.48 × 76,836
  4. Step 4: Simplify right side
    127,166.16x = 13,479,683,705.28
  5. Step 5: Solve for x
    x = 13,479,683,705.28/127,166.16
  6. Step 6: Final answer
    x = 106,000.56

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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.