Home / 117,860.17-162,643.92-64,144.05

Finding the Fourth Proportional to 117,860.17, 162,643.92 and 64,144.05

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Solution

The fourth proportional to 117,860.17, 162,643.92 and 64,144.05 is: 88,517.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,860.17 : 162,643.92 = 64,144.05 : x
  2. Step 2: Convert to fraction form
    117,860.17/162,643.92 = 64,144.05/x
  3. Step 3: Cross multiply
    117,860.17x = 162,643.92 × 64,144.05
  4. Step 4: Simplify right side
    117,860.17x = 10,432,639,736.68
  5. Step 5: Solve for x
    x = 10,432,639,736.68/117,860.17
  6. Step 6: Final answer
    x = 88,517.09

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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.