Home / 117,857.34-162,646.79-66,872.23

Finding the Fourth Proportional to 117,857.34, 162,646.79 and 66,872.23

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Solution

The fourth proportional to 117,857.34, 162,646.79 and 66,872.23 is: 92,285.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,857.34 : 162,646.79 = 66,872.23 : x
  2. Step 2: Convert to fraction form
    117,857.34/162,646.79 = 66,872.23/x
  3. Step 3: Cross multiply
    117,857.34x = 162,646.79 × 66,872.23
  4. Step 4: Simplify right side
    117,857.34x = 10,876,552,808.66
  5. Step 5: Solve for x
    x = 10,876,552,808.66/117,857.34
  6. Step 6: Final answer
    x = 92,285.75

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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.