Home / 117,044.66-161,521.44-66,068.12

Finding the Fourth Proportional to 117,044.66, 161,521.44 and 66,068.12

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Solution

The fourth proportional to 117,044.66, 161,521.44 and 66,068.12 is: 91,173.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,044.66 : 161,521.44 = 66,068.12 : x
  2. Step 2: Convert to fraction form
    117,044.66/161,521.44 = 66,068.12/x
  3. Step 3: Cross multiply
    117,044.66x = 161,521.44 × 66,068.12
  4. Step 4: Simplify right side
    117,044.66x = 10,671,417,880.49
  5. Step 5: Solve for x
    x = 10,671,417,880.49/117,044.66
  6. Step 6: Final answer
    x = 91,173.90

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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.