Home / 102,923.52-154,225.89-71,394.90

Finding the Fourth Proportional to 102,923.52, 154,225.89 and 71,394.90

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Solution

The fourth proportional to 102,923.52, 154,225.89 and 71,394.90 is: 106,981.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,923.52 : 154,225.89 = 71,394.90 : x
  2. Step 2: Convert to fraction form
    102,923.52/154,225.89 = 71,394.90/x
  3. Step 3: Cross multiply
    102,923.52x = 154,225.89 × 71,394.90
  4. Step 4: Simplify right side
    102,923.52x = 11,010,941,993.96
  5. Step 5: Solve for x
    x = 11,010,941,993.96/102,923.52
  6. Step 6: Final answer
    x = 106,981.79

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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.