Home / 208,155.27-312,238.83-66,001.18

Finding the Fourth Proportional to 208,155.27, 312,238.83 and 66,001.18

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Solution

The fourth proportional to 208,155.27, 312,238.83 and 66,001.18 is: 99,003.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,155.27 : 312,238.83 = 66,001.18 : x
  2. Step 2: Convert to fraction form
    208,155.27/312,238.83 = 66,001.18/x
  3. Step 3: Cross multiply
    208,155.27x = 312,238.83 × 66,001.18
  4. Step 4: Simplify right side
    208,155.27x = 20,608,131,221.82
  5. Step 5: Solve for x
    x = 20,608,131,221.82/208,155.27
  6. Step 6: Final answer
    x = 99,003.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.