Home / 138,215.34-207,320.58-44,721.18

Finding the Fourth Proportional to 138,215.34, 207,320.58 and 44,721.18

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Solution

The fourth proportional to 138,215.34, 207,320.58 and 44,721.18 is: 67,080.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,215.34 : 207,320.58 = 44,721.18 : x
  2. Step 2: Convert to fraction form
    138,215.34/207,320.58 = 44,721.18/x
  3. Step 3: Cross multiply
    138,215.34x = 207,320.58 × 44,721.18
  4. Step 4: Simplify right side
    138,215.34x = 9,271,620,975.88
  5. Step 5: Solve for x
    x = 9,271,620,975.88/138,215.34
  6. Step 6: Final answer
    x = 67,080.98

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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.