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Finding the Fourth Proportional to 158,689.56, 218,998.44 and 95,015.20

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Solution

The fourth proportional to 158,689.56, 218,998.44 and 95,015.20 is: 131,125.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,689.56 : 218,998.44 = 95,015.20 : x
  2. Step 2: Convert to fraction form
    158,689.56/218,998.44 = 95,015.20/x
  3. Step 3: Cross multiply
    158,689.56x = 218,998.44 × 95,015.20
  4. Step 4: Simplify right side
    158,689.56x = 20,808,180,576.29
  5. Step 5: Solve for x
    x = 20,808,180,576.29/158,689.56
  6. Step 6: Final answer
    x = 131,125.08

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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.