Home / 131,646.45-197,490.15-42,879.30

Finding the Fourth Proportional to 131,646.45, 197,490.15 and 42,879.30

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Solution

The fourth proportional to 131,646.45, 197,490.15 and 42,879.30 is: 64,325.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,646.45 : 197,490.15 = 42,879.30 : x
  2. Step 2: Convert to fraction form
    131,646.45/197,490.15 = 42,879.30/x
  3. Step 3: Cross multiply
    131,646.45x = 197,490.15 × 42,879.30
  4. Step 4: Simplify right side
    131,646.45x = 8,468,239,388.90
  5. Step 5: Solve for x
    x = 8,468,239,388.90/131,646.45
  6. Step 6: Final answer
    x = 64,325.62

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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.