Home / 142,455.99-196,590.57-77,923.92

Finding the Fourth Proportional to 142,455.99, 196,590.57 and 77,923.92

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Solution

The fourth proportional to 142,455.99, 196,590.57 and 77,923.92 is: 107,535.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,455.99 : 196,590.57 = 77,923.92 : x
  2. Step 2: Convert to fraction form
    142,455.99/196,590.57 = 77,923.92/x
  3. Step 3: Cross multiply
    142,455.99x = 196,590.57 × 77,923.92
  4. Step 4: Simplify right side
    142,455.99x = 15,319,107,849.43
  5. Step 5: Solve for x
    x = 15,319,107,849.43/142,455.99
  6. Step 6: Final answer
    x = 107,535.72

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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.