Home / 147,843.12-221,766.30-42,663

Finding the Fourth Proportional to 147,843.12, 221,766.30 and 42,663

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Solution

The fourth proportional to 147,843.12, 221,766.30 and 42,663 is: 63,994.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,843.12 : 221,766.30 = 42,663 : x
  2. Step 2: Convert to fraction form
    147,843.12/221,766.30 = 42,663/x
  3. Step 3: Cross multiply
    147,843.12x = 221,766.30 × 42,663
  4. Step 4: Simplify right side
    147,843.12x = 9,461,215,656.90
  5. Step 5: Solve for x
    x = 9,461,215,656.90/147,843.12
  6. Step 6: Final answer
    x = 63,994.97

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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.