Home / 111,521.25-153,897.50-63,772.97

Finding the Fourth Proportional to 111,521.25, 153,897.50 and 63,772.97

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Solution

The fourth proportional to 111,521.25, 153,897.50 and 63,772.97 is: 88,005.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,521.25 : 153,897.50 = 63,772.97 : x
  2. Step 2: Convert to fraction form
    111,521.25/153,897.50 = 63,772.97/x
  3. Step 3: Cross multiply
    111,521.25x = 153,897.50 × 63,772.97
  4. Step 4: Simplify right side
    111,521.25x = 9,814,500,040.52
  5. Step 5: Solve for x
    x = 9,814,500,040.52/111,521.25
  6. Step 6: Final answer
    x = 88,005.65

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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.