Home / 111,521.45-153,879.74-63,123.14

Finding the Fourth Proportional to 111,521.45, 153,879.74 and 63,123.14

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Solution

The fourth proportional to 111,521.45, 153,879.74 and 63,123.14 is: 87,098.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,521.45 : 153,879.74 = 63,123.14 : x
  2. Step 2: Convert to fraction form
    111,521.45/153,879.74 = 63,123.14/x
  3. Step 3: Cross multiply
    111,521.45x = 153,879.74 × 63,123.14
  4. Step 4: Simplify right side
    111,521.45x = 9,713,371,286.17
  5. Step 5: Solve for x
    x = 9,713,371,286.17/111,521.45
  6. Step 6: Final answer
    x = 87,098.69

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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.