Home / 120,066.47-165,677.60-66,348.28

Finding the Fourth Proportional to 120,066.47, 165,677.60 and 66,348.28

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Solution

The fourth proportional to 120,066.47, 165,677.60 and 66,348.28 is: 91,552.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,066.47 : 165,677.60 = 66,348.28 : x
  2. Step 2: Convert to fraction form
    120,066.47/165,677.60 = 66,348.28/x
  3. Step 3: Cross multiply
    120,066.47x = 165,677.60 × 66,348.28
  4. Step 4: Simplify right side
    120,066.47x = 10,992,424,167.50
  5. Step 5: Solve for x
    x = 10,992,424,167.50/120,066.47
  6. Step 6: Final answer
    x = 91,552.82

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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.