Home / 142,056,815.28-196,071,164.64-83,338,343.88

Finding the Fourth Proportional to 142,056,815.28, 196,071,164.64 and 83,338,343.88

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Solution

The fourth proportional to 142,056,815.28, 196,071,164.64 and 83,338,343.88 is: 115,026,133.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,056,815.28 : 196,071,164.64 = 83,338,343.88 : x
  2. Step 2: Convert to fraction form
    142,056,815.28/196,071,164.64 = 83,338,343.88/x
  3. Step 3: Cross multiply
    142,056,815.28x = 196,071,164.64 × 83,338,343.88
  4. Step 4: Simplify right side
    142,056,815.28x = 16,340,246,143,720,414
  5. Step 5: Solve for x
    x = 16,340,246,143,720,414/142,056,815.28
  6. Step 6: Final answer
    x = 115,026,133.11

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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.