Home / 142,523.14-196,678.89-77,992.12

Finding the Fourth Proportional to 142,523.14, 196,678.89 and 77,992.12

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Solution

The fourth proportional to 142,523.14, 196,678.89 and 77,992.12 is: 107,627.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,523.14 : 196,678.89 = 77,992.12 : x
  2. Step 2: Convert to fraction form
    142,523.14/196,678.89 = 77,992.12/x
  3. Step 3: Cross multiply
    142,523.14x = 196,678.89 × 77,992.12
  4. Step 4: Simplify right side
    142,523.14x = 15,339,403,590.35
  5. Step 5: Solve for x
    x = 15,339,403,590.35/142,523.14
  6. Step 6: Final answer
    x = 107,627.46

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1.5x scale

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.