Home / 109,121.21-150,585.82-61,374.56

Finding the Fourth Proportional to 109,121.21, 150,585.82 and 61,374.56

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Solution

The fourth proportional to 109,121.21, 150,585.82 and 61,374.56 is: 84,696.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,121.21 : 150,585.82 = 61,374.56 : x
  2. Step 2: Convert to fraction form
    109,121.21/150,585.82 = 61,374.56/x
  3. Step 3: Cross multiply
    109,121.21x = 150,585.82 × 61,374.56
  4. Step 4: Simplify right side
    109,121.21x = 9,242,138,444.74
  5. Step 5: Solve for x
    x = 9,242,138,444.74/109,121.21
  6. Step 6: Final answer
    x = 84,696.08

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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.