Home / 157,399.06-217,204.36-85,777.52

Finding the Fourth Proportional to 157,399.06, 217,204.36 and 85,777.52

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Solution

The fourth proportional to 157,399.06, 217,204.36 and 85,777.52 is: 118,369.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,399.06 : 217,204.36 = 85,777.52 : x
  2. Step 2: Convert to fraction form
    157,399.06/217,204.36 = 85,777.52/x
  3. Step 3: Cross multiply
    157,399.06x = 217,204.36 × 85,777.52
  4. Step 4: Simplify right side
    157,399.06x = 18,631,251,333.99
  5. Step 5: Solve for x
    x = 18,631,251,333.99/157,399.06
  6. Step 6: Final answer
    x = 118,369.52

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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.