Home / 157,183.38-216,915.33-85,565.64

Finding the Fourth Proportional to 157,183.38, 216,915.33 and 85,565.64

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Solution

The fourth proportional to 157,183.38, 216,915.33 and 85,565.64 is: 118,081.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,183.38 : 216,915.33 = 85,565.64 : x
  2. Step 2: Convert to fraction form
    157,183.38/216,915.33 = 85,565.64/x
  3. Step 3: Cross multiply
    157,183.38x = 216,915.33 × 85,565.64
  4. Step 4: Simplify right side
    157,183.38x = 18,560,499,037.26
  5. Step 5: Solve for x
    x = 18,560,499,037.26/157,183.38
  6. Step 6: Final answer
    x = 118,081.82

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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.