Home / 109,195.40-150,689.35-61,448.75

Finding the Fourth Proportional to 109,195.40, 150,689.35 and 61,448.75

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Solution

The fourth proportional to 109,195.40, 150,689.35 and 61,448.75 is: 84,799.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,195.40 : 150,689.35 = 61,448.75 : x
  2. Step 2: Convert to fraction form
    109,195.40/150,689.35 = 61,448.75/x
  3. Step 3: Cross multiply
    109,195.40x = 150,689.35 × 61,448.75
  4. Step 4: Simplify right side
    109,195.40x = 9,259,672,421.66
  5. Step 5: Solve for x
    x = 9,259,672,421.66/109,195.40
  6. Step 6: Final answer
    x = 84,799.10

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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.