Home / 142,678.56-214,034.25-83,514.75

Finding the Fourth Proportional to 142,678.56, 214,034.25 and 83,514.75

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Solution

The fourth proportional to 142,678.56, 214,034.25 and 83,514.75 is: 125,281.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,678.56 : 214,034.25 = 83,514.75 : x
  2. Step 2: Convert to fraction form
    142,678.56/214,034.25 = 83,514.75/x
  3. Step 3: Cross multiply
    142,678.56x = 214,034.25 × 83,514.75
  4. Step 4: Simplify right side
    142,678.56x = 17,875,016,880.19
  5. Step 5: Solve for x
    x = 17,875,016,880.19/142,678.56
  6. Step 6: Final answer
    x = 125,281.73

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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.