Home / 105,984.14-158,981.07-74,957.90

Finding the Fourth Proportional to 105,984.14, 158,981.07 and 74,957.90

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Solution

The fourth proportional to 105,984.14, 158,981.07 and 74,957.90 is: 112,440.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,984.14 : 158,981.07 = 74,957.90 : x
  2. Step 2: Convert to fraction form
    105,984.14/158,981.07 = 74,957.90/x
  3. Step 3: Cross multiply
    105,984.14x = 158,981.07 × 74,957.90
  4. Step 4: Simplify right side
    105,984.14x = 11,916,887,146.95
  5. Step 5: Solve for x
    x = 11,916,887,146.95/105,984.14
  6. Step 6: Final answer
    x = 112,440.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.