Home / 141,233.61-212,613.96-128,664.15

Finding the Fourth Proportional to 141,233.61, 212,613.96 and 128,664.15

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Solution

The fourth proportional to 141,233.61, 212,613.96 and 128,664.15 is: 193,691.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,233.61 : 212,613.96 = 128,664.15 : x
  2. Step 2: Convert to fraction form
    141,233.61/212,613.96 = 128,664.15/x
  3. Step 3: Cross multiply
    141,233.61x = 212,613.96 × 128,664.15
  4. Step 4: Simplify right side
    141,233.61x = 27,355,794,441.53
  5. Step 5: Solve for x
    x = 27,355,794,441.53/141,233.61
  6. Step 6: Final answer
    x = 193,691.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.