Home / 111,277.38-153,479.07-77,285.91

Finding the Fourth Proportional to 111,277.38, 153,479.07 and 77,285.91

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Solution

The fourth proportional to 111,277.38, 153,479.07 and 77,285.91 is: 106,596.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,277.38 : 153,479.07 = 77,285.91 : x
  2. Step 2: Convert to fraction form
    111,277.38/153,479.07 = 77,285.91/x
  3. Step 3: Cross multiply
    111,277.38x = 153,479.07 × 77,285.91
  4. Step 4: Simplify right side
    111,277.38x = 11,861,769,590.90
  5. Step 5: Solve for x
    x = 11,861,769,590.90/111,277.38
  6. Step 6: Final answer
    x = 106,596.41

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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.