Home / 109,899.70-164,849.55-65,612.95

Finding the Fourth Proportional to 109,899.70, 164,849.55 and 65,612.95

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Solution

The fourth proportional to 109,899.70, 164,849.55 and 65,612.95 is: 98,419.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,899.70 : 164,849.55 = 65,612.95 : x
  2. Step 2: Convert to fraction form
    109,899.70/164,849.55 = 65,612.95/x
  3. Step 3: Cross multiply
    109,899.70x = 164,849.55 × 65,612.95
  4. Step 4: Simplify right side
    109,899.70x = 10,816,265,281.67
  5. Step 5: Solve for x
    x = 10,816,265,281.67/109,899.70
  6. Step 6: Final answer
    x = 98,419.43

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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.