Home / 90,295.46-135,318.62-68,084.42

Finding the Fourth Proportional to 90,295.46, 135,318.62 and 68,084.42

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Solution

The fourth proportional to 90,295.46, 135,318.62 and 68,084.42 is: 102,032.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,295.46 : 135,318.62 = 68,084.42 : x
  2. Step 2: Convert to fraction form
    90,295.46/135,318.62 = 68,084.42/x
  3. Step 3: Cross multiply
    90,295.46x = 135,318.62 × 68,084.42
  4. Step 4: Simplify right side
    90,295.46x = 9,213,088,740.89
  5. Step 5: Solve for x
    x = 9,213,088,740.89/90,295.46
  6. Step 6: Final answer
    x = 102,032.70

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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.