Home / 124,953.05-172,255.85-89,080.78

Finding the Fourth Proportional to 124,953.05, 172,255.85 and 89,080.78

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Solution

The fourth proportional to 124,953.05, 172,255.85 and 89,080.78 is: 122,803.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,953.05 : 172,255.85 = 89,080.78 : x
  2. Step 2: Convert to fraction form
    124,953.05/172,255.85 = 89,080.78/x
  3. Step 3: Cross multiply
    124,953.05x = 172,255.85 × 89,080.78
  4. Step 4: Simplify right side
    124,953.05x = 15,344,685,759.63
  5. Step 5: Solve for x
    x = 15,344,685,759.63/124,953.05
  6. Step 6: Final answer
    x = 122,803.61

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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.