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Finding the Fourth Proportional to 181,720.98, 250,774.92 and 101,146.77

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Solution

The fourth proportional to 181,720.98, 250,774.92 and 101,146.77 is: 139,582.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,720.98 : 250,774.92 = 101,146.77 : x
  2. Step 2: Convert to fraction form
    181,720.98/250,774.92 = 101,146.77/x
  3. Step 3: Cross multiply
    181,720.98x = 250,774.92 × 101,146.77
  4. Step 4: Simplify right side
    181,720.98x = 25,365,073,155.01
  5. Step 5: Solve for x
    x = 25,365,073,155.01/181,720.98
  6. Step 6: Final answer
    x = 139,582.52

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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.