Home / 109,948.20-164,922.30-103,387.20

Finding the Fourth Proportional to 109,948.20, 164,922.30 and 103,387.20

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Solution

The fourth proportional to 109,948.20, 164,922.30 and 103,387.20 is: 155,080.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,948.20 : 164,922.30 = 103,387.20 : x
  2. Step 2: Convert to fraction form
    109,948.20/164,922.30 = 103,387.20/x
  3. Step 3: Cross multiply
    109,948.20x = 164,922.30 × 103,387.20
  4. Step 4: Simplify right side
    109,948.20x = 17,050,854,814.56
  5. Step 5: Solve for x
    x = 17,050,854,814.56/109,948.20
  6. Step 6: Final answer
    x = 155,080.80

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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.