Home / 119,939.18-165,511.74-66,223.05

Finding the Fourth Proportional to 119,939.18, 165,511.74 and 66,223.05

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Solution

The fourth proportional to 119,939.18, 165,511.74 and 66,223.05 is: 91,385.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,939.18 : 165,511.74 = 66,223.05 : x
  2. Step 2: Convert to fraction form
    119,939.18/165,511.74 = 66,223.05/x
  3. Step 3: Cross multiply
    119,939.18x = 165,511.74 × 66,223.05
  4. Step 4: Simplify right side
    119,939.18x = 10,960,692,233.61
  5. Step 5: Solve for x
    x = 10,960,692,233.61/119,939.18
  6. Step 6: Final answer
    x = 91,385.42

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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.