Home / 154,321.31-231,271.65-74,353.52

Finding the Fourth Proportional to 154,321.31, 231,271.65 and 74,353.52

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Solution

The fourth proportional to 154,321.31, 231,271.65 and 74,353.52 is: 111,428.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,321.31 : 231,271.65 = 74,353.52 : x
  2. Step 2: Convert to fraction form
    154,321.31/231,271.65 = 74,353.52/x
  3. Step 3: Cross multiply
    154,321.31x = 231,271.65 × 74,353.52
  4. Step 4: Simplify right side
    154,321.31x = 17,195,860,097.35
  5. Step 5: Solve for x
    x = 17,195,860,097.35/154,321.31
  6. Step 6: Final answer
    x = 111,428.94

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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.