Home / 157,512.25-217,358.36-89,519.79

Finding the Fourth Proportional to 157,512.25, 217,358.36 and 89,519.79

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Solution

The fourth proportional to 157,512.25, 217,358.36 and 89,519.79 is: 123,532.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,512.25 : 217,358.36 = 89,519.79 : x
  2. Step 2: Convert to fraction form
    157,512.25/217,358.36 = 89,519.79/x
  3. Step 3: Cross multiply
    157,512.25x = 217,358.36 × 89,519.79
  4. Step 4: Simplify right side
    157,512.25x = 19,457,874,797.89
  5. Step 5: Solve for x
    x = 19,457,874,797.89/157,512.25
  6. Step 6: Final answer
    x = 123,532.45

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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.