Home / 124,612.32-186,846.66-85,217.16

Finding the Fourth Proportional to 124,612.32, 186,846.66 and 85,217.16

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Solution

The fourth proportional to 124,612.32, 186,846.66 and 85,217.16 is: 127,776.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,612.32 : 186,846.66 = 85,217.16 : x
  2. Step 2: Convert to fraction form
    124,612.32/186,846.66 = 85,217.16/x
  3. Step 3: Cross multiply
    124,612.32x = 186,846.66 × 85,217.16
  4. Step 4: Simplify right side
    124,612.32x = 15,922,541,720.69
  5. Step 5: Solve for x
    x = 15,922,541,720.69/124,612.32
  6. Step 6: Final answer
    x = 127,776.63

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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.