Home / 189,037.50-260,863.35-102,996.78

Finding the Fourth Proportional to 189,037.50, 260,863.35 and 102,996.78

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Solution

The fourth proportional to 189,037.50, 260,863.35 and 102,996.78 is: 142,130.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,037.50 : 260,863.35 = 102,996.78 : x
  2. Step 2: Convert to fraction form
    189,037.50/260,863.35 = 102,996.78/x
  3. Step 3: Cross multiply
    189,037.50x = 260,863.35 × 102,996.78
  4. Step 4: Simplify right side
    189,037.50x = 26,868,085,070.01
  5. Step 5: Solve for x
    x = 26,868,085,070.01/189,037.50
  6. Step 6: Final answer
    x = 142,130.98

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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.