Home / 142,414.33-196,533.08-78,753.19

Finding the Fourth Proportional to 142,414.33, 196,533.08 and 78,753.19

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Solution

The fourth proportional to 142,414.33, 196,533.08 and 78,753.19 is: 108,680.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,414.33 : 196,533.08 = 78,753.19 : x
  2. Step 2: Convert to fraction form
    142,414.33/196,533.08 = 78,753.19/x
  3. Step 3: Cross multiply
    142,414.33x = 196,533.08 × 78,753.19
  4. Step 4: Simplify right side
    142,414.33x = 15,477,606,696.08
  5. Step 5: Solve for x
    x = 15,477,606,696.08/142,414.33
  6. Step 6: Final answer
    x = 108,680.12

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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.