Home / 142,104.39-196,097.40-81,632.49

Finding the Fourth Proportional to 142,104.39, 196,097.40 and 81,632.49

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Solution

The fourth proportional to 142,104.39, 196,097.40 and 81,632.49 is: 112,649.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,104.39 : 196,097.40 = 81,632.49 : x
  2. Step 2: Convert to fraction form
    142,104.39/196,097.40 = 81,632.49/x
  3. Step 3: Cross multiply
    142,104.39x = 196,097.40 × 81,632.49
  4. Step 4: Simplify right side
    142,104.39x = 16,007,919,044.53
  5. Step 5: Solve for x
    x = 16,007,919,044.53/142,104.39
  6. Step 6: Final answer
    x = 112,649.01

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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.