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Finding the Fourth Proportional to 172,340.84, 237,987.24 and 129,825.56

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Solution

The fourth proportional to 172,340.84, 237,987.24 and 129,825.56 is: 179,277.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,340.84 : 237,987.24 = 129,825.56 : x
  2. Step 2: Convert to fraction form
    172,340.84/237,987.24 = 129,825.56/x
  3. Step 3: Cross multiply
    172,340.84x = 237,987.24 × 129,825.56
  4. Step 4: Simplify right side
    172,340.84x = 30,896,826,705.85
  5. Step 5: Solve for x
    x = 30,896,826,705.85/172,340.84
  6. Step 6: Final answer
    x = 179,277.45

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1.5x scale

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.