Home / 205,147.92-283,096.53-128,708.13

Finding the Fourth Proportional to 205,147.92, 283,096.53 and 128,708.13

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Solution

The fourth proportional to 205,147.92, 283,096.53 and 128,708.13 is: 177,612.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,147.92 : 283,096.53 = 128,708.13 : x
  2. Step 2: Convert to fraction form
    205,147.92/283,096.53 = 128,708.13/x
  3. Step 3: Cross multiply
    205,147.92x = 283,096.53 × 128,708.13
  4. Step 4: Simplify right side
    205,147.92x = 36,436,824,985.79
  5. Step 5: Solve for x
    x = 36,436,824,985.79/205,147.92
  6. Step 6: Final answer
    x = 177,612.45

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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.