Home / 195,209.76-292,870.68-81,335.40

Finding the Fourth Proportional to 195,209.76, 292,870.68 and 81,335.40

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Solution

The fourth proportional to 195,209.76, 292,870.68 and 81,335.40 is: 122,026.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,209.76 : 292,870.68 = 81,335.40 : x
  2. Step 2: Convert to fraction form
    195,209.76/292,870.68 = 81,335.40/x
  3. Step 3: Cross multiply
    195,209.76x = 292,870.68 × 81,335.40
  4. Step 4: Simplify right side
    195,209.76x = 23,820,753,906.07
  5. Step 5: Solve for x
    x = 23,820,753,906.07/195,209.76
  6. Step 6: Final answer
    x = 122,026.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.