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Finding the Fourth Proportional to 131,796.80, 197,656.80 and 47,547.20

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Solution

The fourth proportional to 131,796.80, 197,656.80 and 47,547.20 is: 71,306.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,796.80 : 197,656.80 = 47,547.20 : x
  2. Step 2: Convert to fraction form
    131,796.80/197,656.80 = 47,547.20/x
  3. Step 3: Cross multiply
    131,796.80x = 197,656.80 × 47,547.20
  4. Step 4: Simplify right side
    131,796.80x = 9,398,027,400.96
  5. Step 5: Solve for x
    x = 9,398,027,400.96/131,796.80
  6. Step 6: Final answer
    x = 71,306.95

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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.