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Finding the Fourth Proportional to 163,334.88, 225,423 and 99,659.16

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Solution

The fourth proportional to 163,334.88, 225,423 and 99,659.16 is: 137,542.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,334.88 : 225,423 = 99,659.16 : x
  2. Step 2: Convert to fraction form
    163,334.88/225,423 = 99,659.16/x
  3. Step 3: Cross multiply
    163,334.88x = 225,423 × 99,659.16
  4. Step 4: Simplify right side
    163,334.88x = 22,465,466,824.68
  5. Step 5: Solve for x
    x = 22,465,466,824.68/163,334.88
  6. Step 6: Final answer
    x = 137,542.37

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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.