Home / 185,600.16-256,128.90-100,717.22

Finding the Fourth Proportional to 185,600.16, 256,128.90 and 100,717.22

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Solution

The fourth proportional to 185,600.16, 256,128.90 and 100,717.22 is: 138,990.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,600.16 : 256,128.90 = 100,717.22 : x
  2. Step 2: Convert to fraction form
    185,600.16/256,128.90 = 100,717.22/x
  3. Step 3: Cross multiply
    185,600.16x = 256,128.90 × 100,717.22
  4. Step 4: Simplify right side
    185,600.16x = 25,796,590,769.66
  5. Step 5: Solve for x
    x = 25,796,590,769.66/185,600.16
  6. Step 6: Final answer
    x = 138,990.13

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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.