Home / 142,387.03-196,502.52-81,956.17

Finding the Fourth Proportional to 142,387.03, 196,502.52 and 81,956.17

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Solution

The fourth proportional to 142,387.03, 196,502.52 and 81,956.17 is: 113,104.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,387.03 : 196,502.52 = 81,956.17 : x
  2. Step 2: Convert to fraction form
    142,387.03/196,502.52 = 81,956.17/x
  3. Step 3: Cross multiply
    142,387.03x = 196,502.52 × 81,956.17
  4. Step 4: Simplify right side
    142,387.03x = 16,104,593,934.55
  5. Step 5: Solve for x
    x = 16,104,593,934.55/142,387.03
  6. Step 6: Final answer
    x = 113,104.36

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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.