Home / 131,686.48-197,550.24-42,919.39

Finding the Fourth Proportional to 131,686.48, 197,550.24 and 42,919.39

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Solution

The fourth proportional to 131,686.48, 197,550.24 and 42,919.39 is: 64,385.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,686.48 : 197,550.24 = 42,919.39 : x
  2. Step 2: Convert to fraction form
    131,686.48/197,550.24 = 42,919.39/x
  3. Step 3: Cross multiply
    131,686.48x = 197,550.24 × 42,919.39
  4. Step 4: Simplify right side
    131,686.48x = 8,478,735,795.15
  5. Step 5: Solve for x
    x = 8,478,735,795.15/131,686.48
  6. Step 6: Final answer
    x = 64,385.77

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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.