Home / 157,257.72-215,795.07-143,001.72

Finding the Fourth Proportional to 157,257.72, 215,795.07 and 143,001.72

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Solution

The fourth proportional to 157,257.72, 215,795.07 and 143,001.72 is: 196,232.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,257.72 : 215,795.07 = 143,001.72 : x
  2. Step 2: Convert to fraction form
    157,257.72/215,795.07 = 143,001.72/x
  3. Step 3: Cross multiply
    157,257.72x = 215,795.07 × 143,001.72
  4. Step 4: Simplify right side
    157,257.72x = 30,859,066,177.52
  5. Step 5: Solve for x
    x = 30,859,066,177.52/157,257.72
  6. Step 6: Final answer
    x = 196,232.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.