Home / 109,162.80-150,644.43-61,416.18

Finding the Fourth Proportional to 109,162.80, 150,644.43 and 61,416.18

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Solution

The fourth proportional to 109,162.80, 150,644.43 and 61,416.18 is: 84,754.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,162.80 : 150,644.43 = 61,416.18 : x
  2. Step 2: Convert to fraction form
    109,162.80/150,644.43 = 61,416.18/x
  3. Step 3: Cross multiply
    109,162.80x = 150,644.43 × 61,416.18
  4. Step 4: Simplify right side
    109,162.80x = 9,252,005,428.88
  5. Step 5: Solve for x
    x = 9,252,005,428.88/109,162.80
  6. Step 6: Final answer
    x = 84,754.20

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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.