Home / 156,311.24-215,704.50-89,243.24

Finding the Fourth Proportional to 156,311.24, 215,704.50 and 89,243.24

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Solution

The fourth proportional to 156,311.24, 215,704.50 and 89,243.24 is: 123,152.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,311.24 : 215,704.50 = 89,243.24 : x
  2. Step 2: Convert to fraction form
    156,311.24/215,704.50 = 89,243.24/x
  3. Step 3: Cross multiply
    156,311.24x = 215,704.50 × 89,243.24
  4. Step 4: Simplify right side
    156,311.24x = 19,250,168,462.58
  5. Step 5: Solve for x
    x = 19,250,168,462.58/156,311.24
  6. Step 6: Final answer
    x = 123,152.81

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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.