Home / 157,473.67-217,314.35-100,917.85

Finding the Fourth Proportional to 157,473.67, 217,314.35 and 100,917.85

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Solution

The fourth proportional to 157,473.67, 217,314.35 and 100,917.85 is: 139,267.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,473.67 : 217,314.35 = 100,917.85 : x
  2. Step 2: Convert to fraction form
    157,473.67/217,314.35 = 100,917.85/x
  3. Step 3: Cross multiply
    157,473.67x = 217,314.35 × 100,917.85
  4. Step 4: Simplify right side
    157,473.67x = 21,930,896,976.15
  5. Step 5: Solve for x
    x = 21,930,896,976.15/157,473.67
  6. Step 6: Final answer
    x = 139,267.07

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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.