Home / 157,176.12-216,902.82-85,555.92

Finding the Fourth Proportional to 157,176.12, 216,902.82 and 85,555.92

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Solution

The fourth proportional to 157,176.12, 216,902.82 and 85,555.92 is: 118,067.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,176.12 : 216,902.82 = 85,555.92 : x
  2. Step 2: Convert to fraction form
    157,176.12/216,902.82 = 85,555.92/x
  3. Step 3: Cross multiply
    157,176.12x = 216,902.82 × 85,555.92
  4. Step 4: Simplify right side
    157,176.12x = 18,557,320,315.69
  5. Step 5: Solve for x
    x = 18,557,320,315.69/157,176.12
  6. Step 6: Final answer
    x = 118,067.05

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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.