Home / 141,229.60-212,613.88-121,945.12

Finding the Fourth Proportional to 141,229.60, 212,613.88 and 121,945.12

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Solution

The fourth proportional to 141,229.60, 212,613.88 and 121,945.12 is: 183,582.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,229.60 : 212,613.88 = 121,945.12 : x
  2. Step 2: Convert to fraction form
    141,229.60/212,613.88 = 121,945.12/x
  3. Step 3: Cross multiply
    141,229.60x = 212,613.88 × 121,945.12
  4. Step 4: Simplify right side
    141,229.60x = 25,927,225,110.27
  5. Step 5: Solve for x
    x = 25,927,225,110.27/141,229.60
  6. Step 6: Final answer
    x = 183,582.09

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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.