Home / 154,065.93-212,591.43-90,380.49

Finding the Fourth Proportional to 154,065.93, 212,591.43 and 90,380.49

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Solution

The fourth proportional to 154,065.93, 212,591.43 and 90,380.49 is: 124,713.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,065.93 : 212,591.43 = 90,380.49 : x
  2. Step 2: Convert to fraction form
    154,065.93/212,591.43 = 90,380.49/x
  3. Step 3: Cross multiply
    154,065.93x = 212,591.43 × 90,380.49
  4. Step 4: Simplify right side
    154,065.93x = 19,214,117,613.20
  5. Step 5: Solve for x
    x = 19,214,117,613.20/154,065.93
  6. Step 6: Final answer
    x = 124,713.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.