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Finding the Fourth Proportional to 101,588.70, 140,197.43 and 61,301.78

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Solution

The fourth proportional to 101,588.70, 140,197.43 and 61,301.78 is: 84,599.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,588.70 : 140,197.43 = 61,301.78 : x
  2. Step 2: Convert to fraction form
    101,588.70/140,197.43 = 61,301.78/x
  3. Step 3: Cross multiply
    101,588.70x = 140,197.43 × 61,301.78
  4. Step 4: Simplify right side
    101,588.70x = 8,594,351,988.43
  5. Step 5: Solve for x
    x = 8,594,351,988.43/101,588.70
  6. Step 6: Final answer
    x = 84,599.49

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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.