Home / 154,345.20-231,172.20-126,697.20

Finding the Fourth Proportional to 154,345.20, 231,172.20 and 126,697.20

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Solution

The fourth proportional to 154,345.20, 231,172.20 and 126,697.20 is: 189,762.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,345.20 : 231,172.20 = 126,697.20 : x
  2. Step 2: Convert to fraction form
    154,345.20/231,172.20 = 126,697.20/x
  3. Step 3: Cross multiply
    154,345.20x = 231,172.20 × 126,697.20
  4. Step 4: Simplify right side
    154,345.20x = 29,288,870,457.84
  5. Step 5: Solve for x
    x = 29,288,870,457.84/154,345.20
  6. Step 6: Final answer
    x = 189,762.11

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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.