Home / 119,813.28-165,343.44-66,100.08

Finding the Fourth Proportional to 119,813.28, 165,343.44 and 66,100.08

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Solution

The fourth proportional to 119,813.28, 165,343.44 and 66,100.08 is: 91,218.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,813.28 : 165,343.44 = 66,100.08 : x
  2. Step 2: Convert to fraction form
    119,813.28/165,343.44 = 66,100.08/x
  3. Step 3: Cross multiply
    119,813.28x = 165,343.44 × 66,100.08
  4. Step 4: Simplify right side
    119,813.28x = 10,929,214,611.48
  5. Step 5: Solve for x
    x = 10,929,214,611.48/119,813.28
  6. Step 6: Final answer
    x = 91,218.72

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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.