Home / 159,725.40-239,588.10-131,731.80

Finding the Fourth Proportional to 159,725.40, 239,588.10 and 131,731.80

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Solution

The fourth proportional to 159,725.40, 239,588.10 and 131,731.80 is: 197,597.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,725.40 : 239,588.10 = 131,731.80 : x
  2. Step 2: Convert to fraction form
    159,725.40/239,588.10 = 131,731.80/x
  3. Step 3: Cross multiply
    159,725.40x = 239,588.10 × 131,731.80
  4. Step 4: Simplify right side
    159,725.40x = 31,561,371,671.58
  5. Step 5: Solve for x
    x = 31,561,371,671.58/159,725.40
  6. Step 6: Final answer
    x = 197,597.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.