Home / 157,645.09-217,554.85-86,029.73

Finding the Fourth Proportional to 157,645.09, 217,554.85 and 86,029.73

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Solution

The fourth proportional to 157,645.09, 217,554.85 and 86,029.73 is: 118,723.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,645.09 : 217,554.85 = 86,029.73 : x
  2. Step 2: Convert to fraction form
    157,645.09/217,554.85 = 86,029.73/x
  3. Step 3: Cross multiply
    157,645.09x = 217,554.85 × 86,029.73
  4. Step 4: Simplify right side
    157,645.09x = 18,716,184,357.37
  5. Step 5: Solve for x
    x = 18,716,184,357.37/157,645.09
  6. Step 6: Final answer
    x = 118,723.55

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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.