Home / 131,557.05-197,337.38-42,811.02

Finding the Fourth Proportional to 131,557.05, 197,337.38 and 42,811.02

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Solution

The fourth proportional to 131,557.05, 197,337.38 and 42,811.02 is: 64,217.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,557.05 : 197,337.38 = 42,811.02 : x
  2. Step 2: Convert to fraction form
    131,557.05/197,337.38 = 42,811.02/x
  3. Step 3: Cross multiply
    131,557.05x = 197,337.38 × 42,811.02
  4. Step 4: Simplify right side
    131,557.05x = 8,448,214,307.87
  5. Step 5: Solve for x
    x = 8,448,214,307.87/131,557.05
  6. Step 6: Final answer
    x = 64,217.12

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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.