Home / 105,442.92-158,182.83-68,039.07

Finding the Fourth Proportional to 105,442.92, 158,182.83 and 68,039.07

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Solution

The fourth proportional to 105,442.92, 158,182.83 and 68,039.07 is: 102,070.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,442.92 : 158,182.83 = 68,039.07 : x
  2. Step 2: Convert to fraction form
    105,442.92/158,182.83 = 68,039.07/x
  3. Step 3: Cross multiply
    105,442.92x = 158,182.83 × 68,039.07
  4. Step 4: Simplify right side
    105,442.92x = 10,762,612,643.17
  5. Step 5: Solve for x
    x = 10,762,612,643.17/105,442.92
  6. Step 6: Final answer
    x = 102,070.51

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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.