Home / 101,480.28-152,138.38-42,360.20

Finding the Fourth Proportional to 101,480.28, 152,138.38 and 42,360.20

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Solution

The fourth proportional to 101,480.28, 152,138.38 and 42,360.20 is: 63,506.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,480.28 : 152,138.38 = 42,360.20 : x
  2. Step 2: Convert to fraction form
    101,480.28/152,138.38 = 42,360.20/x
  3. Step 3: Cross multiply
    101,480.28x = 152,138.38 × 42,360.20
  4. Step 4: Simplify right side
    101,480.28x = 6,444,611,992.68
  5. Step 5: Solve for x
    x = 6,444,611,992.68/101,480.28
  6. Step 6: Final answer
    x = 63,506.06

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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.