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Finding the Fourth Proportional to 134,011.68, 201,046.68 and 40,515

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Solution

The fourth proportional to 134,011.68, 201,046.68 and 40,515 is: 60,781.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,011.68 : 201,046.68 = 40,515 : x
  2. Step 2: Convert to fraction form
    134,011.68/201,046.68 = 40,515/x
  3. Step 3: Cross multiply
    134,011.68x = 201,046.68 × 40,515
  4. Step 4: Simplify right side
    134,011.68x = 8,145,406,240.20
  5. Step 5: Solve for x
    x = 8,145,406,240.20/134,011.68
  6. Step 6: Final answer
    x = 60,781.32

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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.