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Finding the Fourth Proportional to 167,135.28, 230,689.80 and 103,436.88

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Solution

The fourth proportional to 167,135.28, 230,689.80 and 103,436.88 is: 142,769.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,135.28 : 230,689.80 = 103,436.88 : x
  2. Step 2: Convert to fraction form
    167,135.28/230,689.80 = 103,436.88/x
  3. Step 3: Cross multiply
    167,135.28x = 230,689.80 × 103,436.88
  4. Step 4: Simplify right side
    167,135.28x = 23,861,833,159.82
  5. Step 5: Solve for x
    x = 23,861,833,159.82/167,135.28
  6. Step 6: Final answer
    x = 142,769.58

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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.