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Finding the Fourth Proportional to 101,000.52, 139,632.66 and 75,806.28

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Solution

The fourth proportional to 101,000.52, 139,632.66 and 75,806.28 is: 104,801.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,000.52 : 139,632.66 = 75,806.28 : x
  2. Step 2: Convert to fraction form
    101,000.52/139,632.66 = 75,806.28/x
  3. Step 3: Cross multiply
    101,000.52x = 139,632.66 × 75,806.28
  4. Step 4: Simplify right side
    101,000.52x = 10,585,032,521.10
  5. Step 5: Solve for x
    x = 10,585,032,521.10/101,000.52
  6. Step 6: Final answer
    x = 104,801.76

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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.