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Finding the Fourth Proportional to 101,857.72, 140,560.97 and 56,535.59

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Solution

The fourth proportional to 101,857.72, 140,560.97 and 56,535.59 is: 78,017.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,857.72 : 140,560.97 = 56,535.59 : x
  2. Step 2: Convert to fraction form
    101,857.72/140,560.97 = 56,535.59/x
  3. Step 3: Cross multiply
    101,857.72x = 140,560.97 × 56,535.59
  4. Step 4: Simplify right side
    101,857.72x = 7,946,696,384.44
  5. Step 5: Solve for x
    x = 7,946,696,384.44/101,857.72
  6. Step 6: Final answer
    x = 78,017.62

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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.