Home / 138,631.22-207,914.86-38,798.46

Finding the Fourth Proportional to 138,631.22, 207,914.86 and 38,798.46

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Solution

The fourth proportional to 138,631.22, 207,914.86 and 38,798.46 is: 58,188.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,631.22 : 207,914.86 = 38,798.46 : x
  2. Step 2: Convert to fraction form
    138,631.22/207,914.86 = 38,798.46/x
  3. Step 3: Cross multiply
    138,631.22x = 207,914.86 × 38,798.46
  4. Step 4: Simplify right side
    138,631.22x = 8,066,776,379.12
  5. Step 5: Solve for x
    x = 8,066,776,379.12/138,631.22
  6. Step 6: Final answer
    x = 58,188.74

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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.