Home / 102,708.10-154,062.15-47,412.10

Finding the Fourth Proportional to 102,708.10, 154,062.15 and 47,412.10

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Solution

The fourth proportional to 102,708.10, 154,062.15 and 47,412.10 is: 71,118.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,708.10 : 154,062.15 = 47,412.10 : x
  2. Step 2: Convert to fraction form
    102,708.10/154,062.15 = 47,412.10/x
  3. Step 3: Cross multiply
    102,708.10x = 154,062.15 × 47,412.10
  4. Step 4: Simplify right side
    102,708.10x = 7,304,410,062.02
  5. Step 5: Solve for x
    x = 7,304,410,062.02/102,708.10
  6. Step 6: Final answer
    x = 71,118.15

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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.