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Finding the Fourth Proportional to 95,987.83, 143,869.63 and 72,219

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Solution

The fourth proportional to 95,987.83, 143,869.63 and 72,219 is: 108,244.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,987.83 : 143,869.63 = 72,219 : x
  2. Step 2: Convert to fraction form
    95,987.83/143,869.63 = 72,219/x
  3. Step 3: Cross multiply
    95,987.83x = 143,869.63 × 72,219
  4. Step 4: Simplify right side
    95,987.83x = 10,390,120,808.97
  5. Step 5: Solve for x
    x = 10,390,120,808.97/95,987.83
  6. Step 6: Final answer
    x = 108,244.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.