Home / 153,127.11-229,199.22-81,871.68

Finding the Fourth Proportional to 153,127.11, 229,199.22 and 81,871.68

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Solution

The fourth proportional to 153,127.11, 229,199.22 and 81,871.68 is: 122,544.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,127.11 : 229,199.22 = 81,871.68 : x
  2. Step 2: Convert to fraction form
    153,127.11/229,199.22 = 81,871.68/x
  3. Step 3: Cross multiply
    153,127.11x = 229,199.22 × 81,871.68
  4. Step 4: Simplify right side
    153,127.11x = 18,764,925,196.09
  5. Step 5: Solve for x
    x = 18,764,925,196.09/153,127.11
  6. Step 6: Final answer
    x = 122,544.76

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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.