Home / 130,644.36-196,010.28-51,781.14

Finding the Fourth Proportional to 130,644.36, 196,010.28 and 51,781.14

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Solution

The fourth proportional to 130,644.36, 196,010.28 and 51,781.14 is: 77,689.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,644.36 : 196,010.28 = 51,781.14 : x
  2. Step 2: Convert to fraction form
    130,644.36/196,010.28 = 51,781.14/x
  3. Step 3: Cross multiply
    130,644.36x = 196,010.28 × 51,781.14
  4. Step 4: Simplify right side
    130,644.36x = 10,149,635,750.12
  5. Step 5: Solve for x
    x = 10,149,635,750.12/130,644.36
  6. Step 6: Final answer
    x = 77,689.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.