Home / 109,726.40-164,491.05-43,211.90

Finding the Fourth Proportional to 109,726.40, 164,491.05 and 43,211.90

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Solution

The fourth proportional to 109,726.40, 164,491.05 and 43,211.90 is: 64,779.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,726.40 : 164,491.05 = 43,211.90 : x
  2. Step 2: Convert to fraction form
    109,726.40/164,491.05 = 43,211.90/x
  3. Step 3: Cross multiply
    109,726.40x = 164,491.05 × 43,211.90
  4. Step 4: Simplify right side
    109,726.40x = 7,107,970,803.50
  5. Step 5: Solve for x
    x = 7,107,970,803.50/109,726.40
  6. Step 6: Final answer
    x = 64,779.04

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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.