Home / 101,617.20-140,223.50-56,297.09

Finding the Fourth Proportional to 101,617.20, 140,223.50 and 56,297.09

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Solution

The fourth proportional to 101,617.20, 140,223.50 and 56,297.09 is: 77,685.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,617.20 : 140,223.50 = 56,297.09 : x
  2. Step 2: Convert to fraction form
    101,617.20/140,223.50 = 56,297.09/x
  3. Step 3: Cross multiply
    101,617.20x = 140,223.50 × 56,297.09
  4. Step 4: Simplify right side
    101,617.20x = 7,894,175,490.92
  5. Step 5: Solve for x
    x = 7,894,175,490.92/101,617.20
  6. Step 6: Final answer
    x = 77,685.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.