Home / 102,749.04-141,723.68-89,297.37

Finding the Fourth Proportional to 102,749.04, 141,723.68 and 89,297.37

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Solution

The fourth proportional to 102,749.04, 141,723.68 and 89,297.37 is: 123,169.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,749.04 : 141,723.68 = 89,297.37 : x
  2. Step 2: Convert to fraction form
    102,749.04/141,723.68 = 89,297.37/x
  3. Step 3: Cross multiply
    102,749.04x = 141,723.68 × 89,297.37
  4. Step 4: Simplify right side
    102,749.04x = 12,655,551,444.23
  5. Step 5: Solve for x
    x = 12,655,551,444.23/102,749.04
  6. Step 6: Final answer
    x = 123,169.53

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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.