Home / 154,508.18-231,912.09-74,602.53

Finding the Fourth Proportional to 154,508.18, 231,912.09 and 74,602.53

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Solution

The fourth proportional to 154,508.18, 231,912.09 and 74,602.53 is: 111,976.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,508.18 : 231,912.09 = 74,602.53 : x
  2. Step 2: Convert to fraction form
    154,508.18/231,912.09 = 74,602.53/x
  3. Step 3: Cross multiply
    154,508.18x = 231,912.09 × 74,602.53
  4. Step 4: Simplify right side
    154,508.18x = 17,301,228,767.89
  5. Step 5: Solve for x
    x = 17,301,228,767.89/154,508.18
  6. Step 6: Final answer
    x = 111,976.13

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1.5x scale

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.