Home / 119,102.14-178,419.64-69,077.15

Finding the Fourth Proportional to 119,102.14, 178,419.64 and 69,077.15

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Solution

The fourth proportional to 119,102.14, 178,419.64 and 69,077.15 is: 103,480.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,102.14 : 178,419.64 = 69,077.15 : x
  2. Step 2: Convert to fraction form
    119,102.14/178,419.64 = 69,077.15/x
  3. Step 3: Cross multiply
    119,102.14x = 178,419.64 × 69,077.15
  4. Step 4: Simplify right side
    119,102.14x = 12,324,720,235.23
  5. Step 5: Solve for x
    x = 12,324,720,235.23/119,102.14
  6. Step 6: Final answer
    x = 103,480.26

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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.