Home / 112,362.80-155,092.68-66,464.96

Finding the Fourth Proportional to 112,362.80, 155,092.68 and 66,464.96

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Solution

The fourth proportional to 112,362.80, 155,092.68 and 66,464.96 is: 91,740.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,362.80 : 155,092.68 = 66,464.96 : x
  2. Step 2: Convert to fraction form
    112,362.80/155,092.68 = 66,464.96/x
  3. Step 3: Cross multiply
    112,362.80x = 155,092.68 × 66,464.96
  4. Step 4: Simplify right side
    112,362.80x = 10,308,228,772.49
  5. Step 5: Solve for x
    x = 10,308,228,772.49/112,362.80
  6. Step 6: Final answer
    x = 91,740.58

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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.