Home / 101,961.66-140,688.39-61,669.74

Finding the Fourth Proportional to 101,961.66, 140,688.39 and 61,669.74

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Solution

The fourth proportional to 101,961.66, 140,688.39 and 61,669.74 is: 85,092.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,961.66 : 140,688.39 = 61,669.74 : x
  2. Step 2: Convert to fraction form
    101,961.66/140,688.39 = 61,669.74/x
  3. Step 3: Cross multiply
    101,961.66x = 140,688.39 × 61,669.74
  4. Step 4: Simplify right side
    101,961.66x = 8,676,216,432.32
  5. Step 5: Solve for x
    x = 8,676,216,432.32/101,961.66
  6. Step 6: Final answer
    x = 85,092.93

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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.