Home / 151,416.10-208,974.33-86,910.82

Finding the Fourth Proportional to 151,416.10, 208,974.33 and 86,910.82

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Solution

The fourth proportional to 151,416.10, 208,974.33 and 86,910.82 is: 119,948.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,416.10 : 208,974.33 = 86,910.82 : x
  2. Step 2: Convert to fraction form
    151,416.10/208,974.33 = 86,910.82/x
  3. Step 3: Cross multiply
    151,416.10x = 208,974.33 × 86,910.82
  4. Step 4: Simplify right side
    151,416.10x = 18,162,130,379.25
  5. Step 5: Solve for x
    x = 18,162,130,379.25/151,416.10
  6. Step 6: Final answer
    x = 119,948.48

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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.