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Finding the Fourth Proportional to 99,650.70, 137,440.20 and 63,844.06

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Solution

The fourth proportional to 99,650.70, 137,440.20 and 63,844.06 is: 88,054.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,650.70 : 137,440.20 = 63,844.06 : x
  2. Step 2: Convert to fraction form
    99,650.70/137,440.20 = 63,844.06/x
  3. Step 3: Cross multiply
    99,650.70x = 137,440.20 × 63,844.06
  4. Step 4: Simplify right side
    99,650.70x = 8,774,740,375.21
  5. Step 5: Solve for x
    x = 8,774,740,375.21/99,650.70
  6. Step 6: Final answer
    x = 88,054.98

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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.