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Finding the Fourth Proportional to 134,121.66, 201,213.62 and 39,348

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Solution

The fourth proportional to 134,121.66, 201,213.62 and 39,348 is: 59,031.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,121.66 : 201,213.62 = 39,348 : x
  2. Step 2: Convert to fraction form
    134,121.66/201,213.62 = 39,348/x
  3. Step 3: Cross multiply
    134,121.66x = 201,213.62 × 39,348
  4. Step 4: Simplify right side
    134,121.66x = 7,917,353,519.76
  5. Step 5: Solve for x
    x = 7,917,353,519.76/134,121.66
  6. Step 6: Final answer
    x = 59,031.13

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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.