Home / 131,382.08-197,042.40-42,612.80

Finding the Fourth Proportional to 131,382.08, 197,042.40 and 42,612.80

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Solution

The fourth proportional to 131,382.08, 197,042.40 and 42,612.80 is: 63,909.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,382.08 : 197,042.40 = 42,612.80 : x
  2. Step 2: Convert to fraction form
    131,382.08/197,042.40 = 42,612.80/x
  3. Step 3: Cross multiply
    131,382.08x = 197,042.40 × 42,612.80
  4. Step 4: Simplify right side
    131,382.08x = 8,396,528,382.72
  5. Step 5: Solve for x
    x = 8,396,528,382.72/131,382.08
  6. Step 6: Final answer
    x = 63,909.24

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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.