Home / 109,521.73-151,147.04-61,774.05

Finding the Fourth Proportional to 109,521.73, 151,147.04 and 61,774.05

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Solution

The fourth proportional to 109,521.73, 151,147.04 and 61,774.05 is: 85,252.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,521.73 : 151,147.04 = 61,774.05 : x
  2. Step 2: Convert to fraction form
    109,521.73/151,147.04 = 61,774.05/x
  3. Step 3: Cross multiply
    109,521.73x = 151,147.04 × 61,774.05
  4. Step 4: Simplify right side
    109,521.73x = 9,336,964,918.03
  5. Step 5: Solve for x
    x = 9,336,964,918.03/109,521.73
  6. Step 6: Final answer
    x = 85,252.17

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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.