Home / 147,905.12-221,825.04-42,701.20

Finding the Fourth Proportional to 147,905.12, 221,825.04 and 42,701.20

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Solution

The fourth proportional to 147,905.12, 221,825.04 and 42,701.20 is: 64,042.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,905.12 : 221,825.04 = 42,701.20 : x
  2. Step 2: Convert to fraction form
    147,905.12/221,825.04 = 42,701.20/x
  3. Step 3: Cross multiply
    147,905.12x = 221,825.04 × 42,701.20
  4. Step 4: Simplify right side
    147,905.12x = 9,472,195,398.05
  5. Step 5: Solve for x
    x = 9,472,195,398.05/147,905.12
  6. Step 6: Final answer
    x = 64,042.38

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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.