Home / 147,239.49-220,422.92-90,898.44

Finding the Fourth Proportional to 147,239.49, 220,422.92 and 90,898.44

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Solution

The fourth proportional to 147,239.49, 220,422.92 and 90,898.44 is: 136,078.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,239.49 : 220,422.92 = 90,898.44 : x
  2. Step 2: Convert to fraction form
    147,239.49/220,422.92 = 90,898.44/x
  3. Step 3: Cross multiply
    147,239.49x = 220,422.92 × 90,898.44
  4. Step 4: Simplify right side
    147,239.49x = 20,036,099,113.75
  5. Step 5: Solve for x
    x = 20,036,099,113.75/147,239.49
  6. Step 6: Final answer
    x = 136,078.30

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1.5x scale

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.