Home / 142,292.90-196,358.73-81,882.95

Finding the Fourth Proportional to 142,292.90, 196,358.73 and 81,882.95

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Solution

The fourth proportional to 142,292.90, 196,358.73 and 81,882.95 is: 112,995.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,292.90 : 196,358.73 = 81,882.95 : x
  2. Step 2: Convert to fraction form
    142,292.90/196,358.73 = 81,882.95/x
  3. Step 3: Cross multiply
    142,292.90x = 196,358.73 × 81,882.95
  4. Step 4: Simplify right side
    142,292.90x = 16,078,432,346.91
  5. Step 5: Solve for x
    x = 16,078,432,346.91/142,292.90
  6. Step 6: Final answer
    x = 112,995.32

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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.