Home / 131,009.40-196,514.10-42,265.80

Finding the Fourth Proportional to 131,009.40, 196,514.10 and 42,265.80

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Solution

The fourth proportional to 131,009.40, 196,514.10 and 42,265.80 is: 63,398.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,009.40 : 196,514.10 = 42,265.80 : x
  2. Step 2: Convert to fraction form
    131,009.40/196,514.10 = 42,265.80/x
  3. Step 3: Cross multiply
    131,009.40x = 196,514.10 × 42,265.80
  4. Step 4: Simplify right side
    131,009.40x = 8,305,825,647.78
  5. Step 5: Solve for x
    x = 8,305,825,647.78/131,009.40
  6. Step 6: Final answer
    x = 63,398.70

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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.