Home / 109,869.81-151,634.29-62,122.13

Finding the Fourth Proportional to 109,869.81, 151,634.29 and 62,122.13

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Solution

The fourth proportional to 109,869.81, 151,634.29 and 62,122.13 is: 85,736.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,869.81 : 151,634.29 = 62,122.13 : x
  2. Step 2: Convert to fraction form
    109,869.81/151,634.29 = 62,122.13/x
  3. Step 3: Cross multiply
    109,869.81x = 151,634.29 × 62,122.13
  4. Step 4: Simplify right side
    109,869.81x = 9,419,845,075.84
  5. Step 5: Solve for x
    x = 9,419,845,075.84/109,869.81
  6. Step 6: Final answer
    x = 85,736.43

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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.