Home / 109,869.70-164,585.85-57,308.80

Finding the Fourth Proportional to 109,869.70, 164,585.85 and 57,308.80

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Solution

The fourth proportional to 109,869.70, 164,585.85 and 57,308.80 is: 85,849.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,869.70 : 164,585.85 = 57,308.80 : x
  2. Step 2: Convert to fraction form
    109,869.70/164,585.85 = 57,308.80/x
  3. Step 3: Cross multiply
    109,869.70x = 164,585.85 × 57,308.80
  4. Step 4: Simplify right side
    109,869.70x = 9,432,217,560.48
  5. Step 5: Solve for x
    x = 9,432,217,560.48/109,869.70
  6. Step 6: Final answer
    x = 85,849.12

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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.