Home / 88,705.12-133,162.98-69,998.56

Finding the Fourth Proportional to 88,705.12, 133,162.98 and 69,998.56

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Solution

The fourth proportional to 88,705.12, 133,162.98 and 69,998.56 is: 105,080.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,705.12 : 133,162.98 = 69,998.56 : x
  2. Step 2: Convert to fraction form
    88,705.12/133,162.98 = 69,998.56/x
  3. Step 3: Cross multiply
    88,705.12x = 133,162.98 × 69,998.56
  4. Step 4: Simplify right side
    88,705.12x = 9,321,216,845.31
  5. Step 5: Solve for x
    x = 9,321,216,845.31/88,705.12
  6. Step 6: Final answer
    x = 105,080.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.