Home / 197,780.87-272,938.90-107,136.83

Finding the Fourth Proportional to 197,780.87, 272,938.90 and 107,136.83

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Solution

The fourth proportional to 197,780.87, 272,938.90 and 107,136.83 is: 147,849.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,780.87 : 272,938.90 = 107,136.83 : x
  2. Step 2: Convert to fraction form
    197,780.87/272,938.90 = 107,136.83/x
  3. Step 3: Cross multiply
    197,780.87x = 272,938.90 × 107,136.83
  4. Step 4: Simplify right side
    197,780.87x = 29,241,808,529.69
  5. Step 5: Solve for x
    x = 29,241,808,529.69/197,780.87
  6. Step 6: Final answer
    x = 147,849.53

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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.