Home / 131,085.90-196,677.45-52,256.70

Finding the Fourth Proportional to 131,085.90, 196,677.45 and 52,256.70

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Solution

The fourth proportional to 131,085.90, 196,677.45 and 52,256.70 is: 78,404.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,085.90 : 196,677.45 = 52,256.70 : x
  2. Step 2: Convert to fraction form
    131,085.90/196,677.45 = 52,256.70/x
  3. Step 3: Cross multiply
    131,085.90x = 196,677.45 × 52,256.70
  4. Step 4: Simplify right side
    131,085.90x = 10,277,714,501.42
  5. Step 5: Solve for x
    x = 10,277,714,501.42/131,085.90
  6. Step 6: Final answer
    x = 78,404.42

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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.