Home / 157,131.78-216,846.73-89,151.60

Finding the Fourth Proportional to 157,131.78, 216,846.73 and 89,151.60

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Solution

The fourth proportional to 157,131.78, 216,846.73 and 89,151.60 is: 123,031.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,131.78 : 216,846.73 = 89,151.60 : x
  2. Step 2: Convert to fraction form
    157,131.78/216,846.73 = 89,151.60/x
  3. Step 3: Cross multiply
    157,131.78x = 216,846.73 × 89,151.60
  4. Step 4: Simplify right side
    157,131.78x = 19,332,232,934.27
  5. Step 5: Solve for x
    x = 19,332,232,934.27/157,131.78
  6. Step 6: Final answer
    x = 123,031.97

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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.