Home / 85,146.12-117,357.66-58,242.24

Finding the Fourth Proportional to 85,146.12, 117,357.66 and 58,242.24

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Solution

The fourth proportional to 85,146.12, 117,357.66 and 58,242.24 is: 80,275.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,146.12 : 117,357.66 = 58,242.24 : x
  2. Step 2: Convert to fraction form
    85,146.12/117,357.66 = 58,242.24/x
  3. Step 3: Cross multiply
    85,146.12x = 117,357.66 × 58,242.24
  4. Step 4: Simplify right side
    85,146.12x = 6,835,172,999.56
  5. Step 5: Solve for x
    x = 6,835,172,999.56/85,146.12
  6. Step 6: Final answer
    x = 80,275.80

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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.