Home / 157,538.05-217,399.86-85,913.80

Finding the Fourth Proportional to 157,538.05, 217,399.86 and 85,913.80

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Solution

The fourth proportional to 157,538.05, 217,399.86 and 85,913.80 is: 118,559.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,538.05 : 217,399.86 = 85,913.80 : x
  2. Step 2: Convert to fraction form
    157,538.05/217,399.86 = 85,913.80/x
  3. Step 3: Cross multiply
    157,538.05x = 217,399.86 × 85,913.80
  4. Step 4: Simplify right side
    157,538.05x = 18,677,647,548.57
  5. Step 5: Solve for x
    x = 18,677,647,548.57/157,538.05
  6. Step 6: Final answer
    x = 118,559.60

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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.