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Finding the Fourth Proportional to 101,602.62, 140,280.11 and 63,420.32

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Solution

The fourth proportional to 101,602.62, 140,280.11 and 63,420.32 is: 87,562.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,602.62 : 140,280.11 = 63,420.32 : x
  2. Step 2: Convert to fraction form
    101,602.62/140,280.11 = 63,420.32/x
  3. Step 3: Cross multiply
    101,602.62x = 140,280.11 × 63,420.32
  4. Step 4: Simplify right side
    101,602.62x = 8,896,608,447.33
  5. Step 5: Solve for x
    x = 8,896,608,447.33/101,602.62
  6. Step 6: Final answer
    x = 87,562.79

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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.