Home / 154,403.20-231,313.20-79,267.60

Finding the Fourth Proportional to 154,403.20, 231,313.20 and 79,267.60

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Solution

The fourth proportional to 154,403.20, 231,313.20 and 79,267.60 is: 118,751.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,403.20 : 231,313.20 = 79,267.60 : x
  2. Step 2: Convert to fraction form
    154,403.20/231,313.20 = 79,267.60/x
  3. Step 3: Cross multiply
    154,403.20x = 231,313.20 × 79,267.60
  4. Step 4: Simplify right side
    154,403.20x = 18,335,642,212.32
  5. Step 5: Solve for x
    x = 18,335,642,212.32/154,403.20
  6. Step 6: Final answer
    x = 118,751.70

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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.