Home / 117,151.20-161,665.20-66,166.04

Finding the Fourth Proportional to 117,151.20, 161,665.20 and 66,166.04

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Solution

The fourth proportional to 117,151.20, 161,665.20 and 66,166.04 is: 91,307.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,151.20 : 161,665.20 = 66,166.04 : x
  2. Step 2: Convert to fraction form
    117,151.20/161,665.20 = 66,166.04/x
  3. Step 3: Cross multiply
    117,151.20x = 161,665.20 × 66,166.04
  4. Step 4: Simplify right side
    117,151.20x = 10,696,746,089.81
  5. Step 5: Solve for x
    x = 10,696,746,089.81/117,151.20
  6. Step 6: Final answer
    x = 91,307.18

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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.