Home / 99,994.31-138,084.24-64,246.61

Finding the Fourth Proportional to 99,994.31, 138,084.24 and 64,246.61

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Solution

The fourth proportional to 99,994.31, 138,084.24 and 64,246.61 is: 88,719.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,994.31 : 138,084.24 = 64,246.61 : x
  2. Step 2: Convert to fraction form
    99,994.31/138,084.24 = 64,246.61/x
  3. Step 3: Cross multiply
    99,994.31x = 138,084.24 × 64,246.61
  4. Step 4: Simplify right side
    99,994.31x = 8,871,444,539.17
  5. Step 5: Solve for x
    x = 8,871,444,539.17/99,994.31
  6. Step 6: Final answer
    x = 88,719.49

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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.