Home / 157,623.44-217,520.69-89,638.70

Finding the Fourth Proportional to 157,623.44, 217,520.69 and 89,638.70

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Solution

The fourth proportional to 157,623.44, 217,520.69 and 89,638.70 is: 123,701.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,623.44 : 217,520.69 = 89,638.70 : x
  2. Step 2: Convert to fraction form
    157,623.44/217,520.69 = 89,638.70/x
  3. Step 3: Cross multiply
    157,623.44x = 217,520.69 × 89,638.70
  4. Step 4: Simplify right side
    157,623.44x = 19,498,270,338.91
  5. Step 5: Solve for x
    x = 19,498,270,338.91/157,623.44
  6. Step 6: Final answer
    x = 123,701.60

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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.