Home / 157,048.43-216,725.78-89,078.63

Finding the Fourth Proportional to 157,048.43, 216,725.78 and 89,078.63

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Solution

The fourth proportional to 157,048.43, 216,725.78 and 89,078.63 is: 122,927.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,048.43 : 216,725.78 = 89,078.63 : x
  2. Step 2: Convert to fraction form
    157,048.43/216,725.78 = 89,078.63/x
  3. Step 3: Cross multiply
    157,048.43x = 216,725.78 × 89,078.63
  4. Step 4: Simplify right side
    157,048.43x = 19,305,635,122.69
  5. Step 5: Solve for x
    x = 19,305,635,122.69/157,048.43
  6. Step 6: Final answer
    x = 122,927.91

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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.