Home / 154,030.70-231,046.05-131,480.30

Finding the Fourth Proportional to 154,030.70, 231,046.05 and 131,480.30

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Solution

The fourth proportional to 154,030.70, 231,046.05 and 131,480.30 is: 197,220.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,030.70 : 231,046.05 = 131,480.30 : x
  2. Step 2: Convert to fraction form
    154,030.70/231,046.05 = 131,480.30/x
  3. Step 3: Cross multiply
    154,030.70x = 231,046.05 × 131,480.30
  4. Step 4: Simplify right side
    154,030.70x = 30,378,003,967.82
  5. Step 5: Solve for x
    x = 30,378,003,967.82/154,030.70
  6. Step 6: Final answer
    x = 197,220.45

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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.