Home / 102,904.72-154,357.12-67,836.20

Finding the Fourth Proportional to 102,904.72, 154,357.12 and 67,836.20

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Solution

The fourth proportional to 102,904.72, 154,357.12 and 67,836.20 is: 101,754.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,904.72 : 154,357.12 = 67,836.20 : x
  2. Step 2: Convert to fraction form
    102,904.72/154,357.12 = 67,836.20/x
  3. Step 3: Cross multiply
    102,904.72x = 154,357.12 × 67,836.20
  4. Step 4: Simplify right side
    102,904.72x = 10,471,000,463.74
  5. Step 5: Solve for x
    x = 10,471,000,463.74/102,904.72
  6. Step 6: Final answer
    x = 101,754.33

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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.