Home / 156,118.57-215,297.41-103,637.73

Finding the Fourth Proportional to 156,118.57, 215,297.41 and 103,637.73

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Solution

The fourth proportional to 156,118.57, 215,297.41 and 103,637.73 is: 142,923.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,118.57 : 215,297.41 = 103,637.73 : x
  2. Step 2: Convert to fraction form
    156,118.57/215,297.41 = 103,637.73/x
  3. Step 3: Cross multiply
    156,118.57x = 215,297.41 × 103,637.73
  4. Step 4: Simplify right side
    156,118.57x = 22,312,934,847.28
  5. Step 5: Solve for x
    x = 22,312,934,847.28/156,118.57
  6. Step 6: Final answer
    x = 142,923.00

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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.