Home / 117,045.66-161,522.82-66,069.12

Finding the Fourth Proportional to 117,045.66, 161,522.82 and 66,069.12

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Solution

The fourth proportional to 117,045.66, 161,522.82 and 66,069.12 is: 91,175.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,045.66 : 161,522.82 = 66,069.12 : x
  2. Step 2: Convert to fraction form
    117,045.66/161,522.82 = 66,069.12/x
  3. Step 3: Cross multiply
    117,045.66x = 161,522.82 × 66,069.12
  4. Step 4: Simplify right side
    117,045.66x = 10,671,670,577.32
  5. Step 5: Solve for x
    x = 10,671,670,577.32/117,045.66
  6. Step 6: Final answer
    x = 91,175.28

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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.