Home / 126,330.45-174,365.34-83,317.71

Finding the Fourth Proportional to 126,330.45, 174,365.34 and 83,317.71

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Solution

The fourth proportional to 126,330.45, 174,365.34 and 83,317.71 is: 114,997.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,330.45 : 174,365.34 = 83,317.71 : x
  2. Step 2: Convert to fraction form
    126,330.45/174,365.34 = 83,317.71/x
  3. Step 3: Cross multiply
    126,330.45x = 174,365.34 × 83,317.71
  4. Step 4: Simplify right side
    126,330.45x = 14,527,720,832.17
  5. Step 5: Solve for x
    x = 14,527,720,832.17/126,330.45
  6. Step 6: Final answer
    x = 114,997.78

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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.