Home / 99,328.82-148,057.52-91,357.20

Finding the Fourth Proportional to 99,328.82, 148,057.52 and 91,357.20

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Solution

The fourth proportional to 99,328.82, 148,057.52 and 91,357.20 is: 136,175.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,328.82 : 148,057.52 = 91,357.20 : x
  2. Step 2: Convert to fraction form
    99,328.82/148,057.52 = 91,357.20/x
  3. Step 3: Cross multiply
    99,328.82x = 148,057.52 × 91,357.20
  4. Step 4: Simplify right side
    99,328.82x = 13,526,120,009.36
  5. Step 5: Solve for x
    x = 13,526,120,009.36/99,328.82
  6. Step 6: Final answer
    x = 136,175.19

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.