Home / 154,481.70-231,430.95-79,346.10

Finding the Fourth Proportional to 154,481.70, 231,430.95 and 79,346.10

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Solution

The fourth proportional to 154,481.70, 231,430.95 and 79,346.10 is: 118,869.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,481.70 : 231,430.95 = 79,346.10 : x
  2. Step 2: Convert to fraction form
    154,481.70/231,430.95 = 79,346.10/x
  3. Step 3: Cross multiply
    154,481.70x = 231,430.95 × 79,346.10
  4. Step 4: Simplify right side
    154,481.70x = 18,363,143,301.80
  5. Step 5: Solve for x
    x = 18,363,143,301.80/154,481.70
  6. Step 6: Final answer
    x = 118,869.38

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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.