Home / 157,545.12-217,447.56-100,173.36

Finding the Fourth Proportional to 157,545.12, 217,447.56 and 100,173.36

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Solution

The fourth proportional to 157,545.12, 217,447.56 and 100,173.36 is: 138,261.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,545.12 : 217,447.56 = 100,173.36 : x
  2. Step 2: Convert to fraction form
    157,545.12/217,447.56 = 100,173.36/x
  3. Step 3: Cross multiply
    157,545.12x = 217,447.56 × 100,173.36
  4. Step 4: Simplify right side
    157,545.12x = 21,782,452,709.00
  5. Step 5: Solve for x
    x = 21,782,452,709.00/157,545.12
  6. Step 6: Final answer
    x = 138,261.68

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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.