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Finding the Fourth Proportional to 163,159.76, 225,156.97 and 90,558.41

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Solution

The fourth proportional to 163,159.76, 225,156.97 and 90,558.41 is: 124,968.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,159.76 : 225,156.97 = 90,558.41 : x
  2. Step 2: Convert to fraction form
    163,159.76/225,156.97 = 90,558.41/x
  3. Step 3: Cross multiply
    163,159.76x = 225,156.97 × 90,558.41
  4. Step 4: Simplify right side
    163,159.76x = 20,389,857,106.46
  5. Step 5: Solve for x
    x = 20,389,857,106.46/163,159.76
  6. Step 6: Final answer
    x = 124,968.66

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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.