Home / 113,197.53-156,056.49-90,305.04

Finding the Fourth Proportional to 113,197.53, 156,056.49 and 90,305.04

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Solution

The fourth proportional to 113,197.53, 156,056.49 and 90,305.04 is: 124,496.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,197.53 : 156,056.49 = 90,305.04 : x
  2. Step 2: Convert to fraction form
    113,197.53/156,056.49 = 90,305.04/x
  3. Step 3: Cross multiply
    113,197.53x = 156,056.49 × 90,305.04
  4. Step 4: Simplify right side
    113,197.53x = 14,092,687,571.71
  5. Step 5: Solve for x
    x = 14,092,687,571.71/113,197.53
  6. Step 6: Final answer
    x = 124,496.42

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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.