Home / 157,419.20-236,130.48-126,028.76

Finding the Fourth Proportional to 157,419.20, 236,130.48 and 126,028.76

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Solution

The fourth proportional to 157,419.20, 236,130.48 and 126,028.76 is: 189,044.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,419.20 : 236,130.48 = 126,028.76 : x
  2. Step 2: Convert to fraction form
    157,419.20/236,130.48 = 126,028.76/x
  3. Step 3: Cross multiply
    157,419.20x = 236,130.48 × 126,028.76
  4. Step 4: Simplify right side
    157,419.20x = 29,759,231,592.60
  5. Step 5: Solve for x
    x = 29,759,231,592.60/157,419.20
  6. Step 6: Final answer
    x = 189,044.48

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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.