Home / 102,867.79-154,052.52-71,189.08

Finding the Fourth Proportional to 102,867.79, 154,052.52 and 71,189.08

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Solution

The fourth proportional to 102,867.79, 154,052.52 and 71,189.08 is: 106,611.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,867.79 : 154,052.52 = 71,189.08 : x
  2. Step 2: Convert to fraction form
    102,867.79/154,052.52 = 71,189.08/x
  3. Step 3: Cross multiply
    102,867.79x = 154,052.52 × 71,189.08
  4. Step 4: Simplify right side
    102,867.79x = 10,966,857,170.48
  5. Step 5: Solve for x
    x = 10,966,857,170.48/102,867.79
  6. Step 6: Final answer
    x = 106,611.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.