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Finding the Fourth Proportional to 101,552.85, 140,099.51 and 61,243.70

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Solution

The fourth proportional to 101,552.85, 140,099.51 and 61,243.70 is: 84,490.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,552.85 : 140,099.51 = 61,243.70 : x
  2. Step 2: Convert to fraction form
    101,552.85/140,099.51 = 61,243.70/x
  3. Step 3: Cross multiply
    101,552.85x = 140,099.51 × 61,243.70
  4. Step 4: Simplify right side
    101,552.85x = 8,580,211,813.20
  5. Step 5: Solve for x
    x = 8,580,211,813.20/101,552.85
  6. Step 6: Final answer
    x = 84,490.11

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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.