Home / 102,956.20-154,434.30-71,463.40

Finding the Fourth Proportional to 102,956.20, 154,434.30 and 71,463.40

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Solution

The fourth proportional to 102,956.20, 154,434.30 and 71,463.40 is: 107,195.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,956.20 : 154,434.30 = 71,463.40 : x
  2. Step 2: Convert to fraction form
    102,956.20/154,434.30 = 71,463.40/x
  3. Step 3: Cross multiply
    102,956.20x = 154,434.30 × 71,463.40
  4. Step 4: Simplify right side
    102,956.20x = 11,036,400,154.62
  5. Step 5: Solve for x
    x = 11,036,400,154.62/102,956.20
  6. Step 6: Final answer
    x = 107,195.10

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1.5x scale

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.