Home / 88,514.10-122,077.53-81,134.19

Finding the Fourth Proportional to 88,514.10, 122,077.53 and 81,134.19

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Solution

The fourth proportional to 88,514.10, 122,077.53 and 81,134.19 is: 111,899.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,514.10 : 122,077.53 = 81,134.19 : x
  2. Step 2: Convert to fraction form
    88,514.10/122,077.53 = 81,134.19/x
  3. Step 3: Cross multiply
    88,514.10x = 122,077.53 × 81,134.19
  4. Step 4: Simplify right side
    88,514.10x = 9,904,661,513.75
  5. Step 5: Solve for x
    x = 9,904,661,513.75/88,514.10
  6. Step 6: Final answer
    x = 111,899.25

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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.