Home / 117,839.90-162,618.84-66,862.64

Finding the Fourth Proportional to 117,839.90, 162,618.84 and 66,862.64

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Solution

The fourth proportional to 117,839.90, 162,618.84 and 66,862.64 is: 92,270.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,839.90 : 162,618.84 = 66,862.64 : x
  2. Step 2: Convert to fraction form
    117,839.90/162,618.84 = 66,862.64/x
  3. Step 3: Cross multiply
    117,839.90x = 162,618.84 × 66,862.64
  4. Step 4: Simplify right side
    117,839.90x = 10,873,124,956.14
  5. Step 5: Solve for x
    x = 10,873,124,956.14/117,839.90
  6. Step 6: Final answer
    x = 92,270.32

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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.