Home / 120,283.47-165,988.89-66,568.52

Finding the Fourth Proportional to 120,283.47, 165,988.89 and 66,568.52

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Solution

The fourth proportional to 120,283.47, 165,988.89 and 66,568.52 is: 91,863.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,283.47 : 165,988.89 = 66,568.52 : x
  2. Step 2: Convert to fraction form
    120,283.47/165,988.89 = 66,568.52/x
  3. Step 3: Cross multiply
    120,283.47x = 165,988.89 × 66,568.52
  4. Step 4: Simplify right side
    120,283.47x = 11,049,633,913.80
  5. Step 5: Solve for x
    x = 11,049,633,913.80/120,283.47
  6. Step 6: Final answer
    x = 91,863.28

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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.