Home / 452,272.42-678,507.05-136,721.13

Finding the Fourth Proportional to 452,272.42, 678,507.05 and 136,721.13

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Solution

The fourth proportional to 452,272.42, 678,507.05 and 136,721.13 is: 205,111.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,272.42 : 678,507.05 = 136,721.13 : x
  2. Step 2: Convert to fraction form
    452,272.42/678,507.05 = 136,721.13/x
  3. Step 3: Cross multiply
    452,272.42x = 678,507.05 × 136,721.13
  4. Step 4: Simplify right side
    452,272.42x = 92,766,250,588.97
  5. Step 5: Solve for x
    x = 92,766,250,588.97/452,272.42
  6. Step 6: Final answer
    x = 205,111.45

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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.