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Finding the Fourth Proportional to 146,188.71, 201,740.35 and 79,120.71

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Solution

The fourth proportional to 146,188.71, 201,740.35 and 79,120.71 is: 109,186.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,188.71 : 201,740.35 = 79,120.71 : x
  2. Step 2: Convert to fraction form
    146,188.71/201,740.35 = 79,120.71/x
  3. Step 3: Cross multiply
    146,188.71x = 201,740.35 × 79,120.71
  4. Step 4: Simplify right side
    146,188.71x = 15,961,839,727.65
  5. Step 5: Solve for x
    x = 15,961,839,727.65/146,188.71
  6. Step 6: Final answer
    x = 109,186.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.