Home / 131,548.04-197,342.66-42,780.75

Finding the Fourth Proportional to 131,548.04, 197,342.66 and 42,780.75

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Solution

The fourth proportional to 131,548.04, 197,342.66 and 42,780.75 is: 64,177.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,548.04 : 197,342.66 = 42,780.75 : x
  2. Step 2: Convert to fraction form
    131,548.04/197,342.66 = 42,780.75/x
  3. Step 3: Cross multiply
    131,548.04x = 197,342.66 × 42,780.75
  4. Step 4: Simplify right side
    131,548.04x = 8,442,467,001.80
  5. Step 5: Solve for x
    x = 8,442,467,001.80/131,548.04
  6. Step 6: Final answer
    x = 64,177.82

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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.