Home / 154,437.29-231,805.73-74,531.50

Finding the Fourth Proportional to 154,437.29, 231,805.73 and 74,531.50

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Solution

The fourth proportional to 154,437.29, 231,805.73 and 74,531.50 is: 111,869.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,437.29 : 231,805.73 = 74,531.50 : x
  2. Step 2: Convert to fraction form
    154,437.29/231,805.73 = 74,531.50/x
  3. Step 3: Cross multiply
    154,437.29x = 231,805.73 × 74,531.50
  4. Step 4: Simplify right side
    154,437.29x = 17,276,828,372.31
  5. Step 5: Solve for x
    x = 17,276,828,372.31/154,437.29
  6. Step 6: Final answer
    x = 111,869.54

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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.