Home / 131,816.16-181,906.97-71,386.92

Finding the Fourth Proportional to 131,816.16, 181,906.97 and 71,386.92

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Solution

The fourth proportional to 131,816.16, 181,906.97 and 71,386.92 is: 98,514.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,816.16 : 181,906.97 = 71,386.92 : x
  2. Step 2: Convert to fraction form
    131,816.16/181,906.97 = 71,386.92/x
  3. Step 3: Cross multiply
    131,816.16x = 181,906.97 × 71,386.92
  4. Step 4: Simplify right side
    131,816.16x = 12,985,777,957.90
  5. Step 5: Solve for x
    x = 12,985,777,957.90/131,816.16
  6. Step 6: Final answer
    x = 98,514.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.