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Finding the Fourth Proportional to 146,148.76, 201,685.91 and 79,080.76

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Solution

The fourth proportional to 146,148.76, 201,685.91 and 79,080.76 is: 109,131.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,148.76 : 201,685.91 = 79,080.76 : x
  2. Step 2: Convert to fraction form
    146,148.76/201,685.91 = 79,080.76/x
  3. Step 3: Cross multiply
    146,148.76x = 201,685.91 × 79,080.76
  4. Step 4: Simplify right side
    146,148.76x = 15,949,475,044.09
  5. Step 5: Solve for x
    x = 15,949,475,044.09/146,148.76
  6. Step 6: Final answer
    x = 109,131.78

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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.