Home / 147,331.27-203,317.19-83,678.77

Finding the Fourth Proportional to 147,331.27, 203,317.19 and 83,678.77

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Solution

The fourth proportional to 147,331.27, 203,317.19 and 83,678.77 is: 115,476.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,331.27 : 203,317.19 = 83,678.77 : x
  2. Step 2: Convert to fraction form
    147,331.27/203,317.19 = 83,678.77/x
  3. Step 3: Cross multiply
    147,331.27x = 203,317.19 × 83,678.77
  4. Step 4: Simplify right side
    147,331.27x = 17,013,332,379.06
  5. Step 5: Solve for x
    x = 17,013,332,379.06/147,331.27
  6. Step 6: Final answer
    x = 115,476.72

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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.