Home / 124,506.72-171,819.36-67,921.20

Finding the Fourth Proportional to 124,506.72, 171,819.36 and 67,921.20

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Solution

The fourth proportional to 124,506.72, 171,819.36 and 67,921.20 is: 93,731.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,506.72 : 171,819.36 = 67,921.20 : x
  2. Step 2: Convert to fraction form
    124,506.72/171,819.36 = 67,921.20/x
  3. Step 3: Cross multiply
    124,506.72x = 171,819.36 × 67,921.20
  4. Step 4: Simplify right side
    124,506.72x = 11,670,177,114.43
  5. Step 5: Solve for x
    x = 11,670,177,114.43/124,506.72
  6. Step 6: Final answer
    x = 93,731.30

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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.