Home / 120,091.18-165,715.82-66,376.18

Finding the Fourth Proportional to 120,091.18, 165,715.82 and 66,376.18

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Solution

The fourth proportional to 120,091.18, 165,715.82 and 66,376.18 is: 91,593.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,091.18 : 165,715.82 = 66,376.18 : x
  2. Step 2: Convert to fraction form
    120,091.18/165,715.82 = 66,376.18/x
  3. Step 3: Cross multiply
    120,091.18x = 165,715.82 × 66,376.18
  4. Step 4: Simplify right side
    120,091.18x = 10,999,583,097.17
  5. Step 5: Solve for x
    x = 10,999,583,097.17/120,091.18
  6. Step 6: Final answer
    x = 91,593.60

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1.5x scale

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.