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Finding the Fourth Proportional to 163,321.57, 225,408.18 and 99,696.34

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Solution

The fourth proportional to 163,321.57, 225,408.18 and 99,696.34 is: 137,595.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,321.57 : 225,408.18 = 99,696.34 : x
  2. Step 2: Convert to fraction form
    163,321.57/225,408.18 = 99,696.34/x
  3. Step 3: Cross multiply
    163,321.57x = 225,408.18 × 99,696.34
  4. Step 4: Simplify right side
    163,321.57x = 22,472,370,552.06
  5. Step 5: Solve for x
    x = 22,472,370,552.06/163,321.57
  6. Step 6: Final answer
    x = 137,595.85

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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.