Home / 195,210.76-292,872.18-81,336.40

Finding the Fourth Proportional to 195,210.76, 292,872.18 and 81,336.40

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Solution

The fourth proportional to 195,210.76, 292,872.18 and 81,336.40 is: 122,027.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,210.76 : 292,872.18 = 81,336.40 : x
  2. Step 2: Convert to fraction form
    195,210.76/292,872.18 = 81,336.40/x
  3. Step 3: Cross multiply
    195,210.76x = 292,872.18 × 81,336.40
  4. Step 4: Simplify right side
    195,210.76x = 23,821,168,781.35
  5. Step 5: Solve for x
    x = 23,821,168,781.35/195,210.76
  6. Step 6: Final answer
    x = 122,027.95

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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.