Home / 109,159.70-150,629.66-61,412.03

Finding the Fourth Proportional to 109,159.70, 150,629.66 and 61,412.03

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Solution

The fourth proportional to 109,159.70, 150,629.66 and 61,412.03 is: 84,742.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,159.70 : 150,629.66 = 61,412.03 : x
  2. Step 2: Convert to fraction form
    109,159.70/150,629.66 = 61,412.03/x
  3. Step 3: Cross multiply
    109,159.70x = 150,629.66 × 61,412.03
  4. Step 4: Simplify right side
    109,159.70x = 9,250,472,445.66
  5. Step 5: Solve for x
    x = 9,250,472,445.66/109,159.70
  6. Step 6: Final answer
    x = 84,742.56

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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.