Home / 153,623.70-211,983.58-85,635.54

Finding the Fourth Proportional to 153,623.70, 211,983.58 and 85,635.54

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Solution

The fourth proportional to 153,623.70, 211,983.58 and 85,635.54 is: 118,167.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,623.70 : 211,983.58 = 85,635.54 : x
  2. Step 2: Convert to fraction form
    153,623.70/211,983.58 = 85,635.54/x
  3. Step 3: Cross multiply
    153,623.70x = 211,983.58 × 85,635.54
  4. Step 4: Simplify right side
    153,623.70x = 18,153,328,344.43
  5. Step 5: Solve for x
    x = 18,153,328,344.43/153,623.70
  6. Step 6: Final answer
    x = 118,167.50

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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.