Home / 238,741.14-358,081.11-78,777.48

Finding the Fourth Proportional to 238,741.14, 358,081.11 and 78,777.48

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Solution

The fourth proportional to 238,741.14, 358,081.11 and 78,777.48 is: 118,156.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,741.14 : 358,081.11 = 78,777.48 : x
  2. Step 2: Convert to fraction form
    238,741.14/358,081.11 = 78,777.48/x
  3. Step 3: Cross multiply
    238,741.14x = 358,081.11 × 78,777.48
  4. Step 4: Simplify right side
    238,741.14x = 28,208,727,481.40
  5. Step 5: Solve for x
    x = 28,208,727,481.40/238,741.14
  6. Step 6: Final answer
    x = 118,156.12

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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.