Home / 113,037.72-156,004.52-72,239.44

Finding the Fourth Proportional to 113,037.72, 156,004.52 and 72,239.44

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Solution

The fourth proportional to 113,037.72, 156,004.52 and 72,239.44 is: 99,698.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,037.72 : 156,004.52 = 72,239.44 : x
  2. Step 2: Convert to fraction form
    113,037.72/156,004.52 = 72,239.44/x
  3. Step 3: Cross multiply
    113,037.72x = 156,004.52 × 72,239.44
  4. Step 4: Simplify right side
    113,037.72x = 11,269,679,162.27
  5. Step 5: Solve for x
    x = 11,269,679,162.27/113,037.72
  6. Step 6: Final answer
    x = 99,698.39

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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.