Home / 109,929.20-164,672.67-83,320.70

Finding the Fourth Proportional to 109,929.20, 164,672.67 and 83,320.70

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Solution

The fourth proportional to 109,929.20, 164,672.67 and 83,320.70 is: 124,813.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,929.20 : 164,672.67 = 83,320.70 : x
  2. Step 2: Convert to fraction form
    109,929.20/164,672.67 = 83,320.70/x
  3. Step 3: Cross multiply
    109,929.20x = 164,672.67 × 83,320.70
  4. Step 4: Simplify right side
    109,929.20x = 13,720,642,316.30
  5. Step 5: Solve for x
    x = 13,720,642,316.30/109,929.20
  6. Step 6: Final answer
    x = 124,813.45

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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.