Home / 115,037.70-158,884.98-76,730.73

Finding the Fourth Proportional to 115,037.70, 158,884.98 and 76,730.73

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Solution

The fourth proportional to 115,037.70, 158,884.98 and 76,730.73 is: 105,977.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,037.70 : 158,884.98 = 76,730.73 : x
  2. Step 2: Convert to fraction form
    115,037.70/158,884.98 = 76,730.73/x
  3. Step 3: Cross multiply
    115,037.70x = 158,884.98 × 76,730.73
  4. Step 4: Simplify right side
    115,037.70x = 12,191,360,501.44
  5. Step 5: Solve for x
    x = 12,191,360,501.44/115,037.70
  6. Step 6: Final answer
    x = 105,977.09

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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.