Home / 154,436.99-231,805.29-74,531.20

Finding the Fourth Proportional to 154,436.99, 231,805.29 and 74,531.20

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Solution

The fourth proportional to 154,436.99, 231,805.29 and 74,531.20 is: 111,869.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,436.99 : 231,805.29 = 74,531.20 : x
  2. Step 2: Convert to fraction form
    154,436.99/231,805.29 = 74,531.20/x
  3. Step 3: Cross multiply
    154,436.99x = 231,805.29 × 74,531.20
  4. Step 4: Simplify right side
    154,436.99x = 17,276,724,991.53
  5. Step 5: Solve for x
    x = 17,276,724,991.53/154,436.99
  6. Step 6: Final answer
    x = 111,869.08

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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.