Home / 119,827.80-165,363.28-66,114.78

Finding the Fourth Proportional to 119,827.80, 165,363.28 and 66,114.78

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Solution

The fourth proportional to 119,827.80, 165,363.28 and 66,114.78 is: 91,238.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,827.80 : 165,363.28 = 66,114.78 : x
  2. Step 2: Convert to fraction form
    119,827.80/165,363.28 = 66,114.78/x
  3. Step 3: Cross multiply
    119,827.80x = 165,363.28 × 66,114.78
  4. Step 4: Simplify right side
    119,827.80x = 10,932,956,877.28
  5. Step 5: Solve for x
    x = 10,932,956,877.28/119,827.80
  6. Step 6: Final answer
    x = 91,238.90

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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.