Home / 147,721.23-203,785.61-107,417.25

Finding the Fourth Proportional to 147,721.23, 203,785.61 and 107,417.25

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Solution

The fourth proportional to 147,721.23, 203,785.61 and 107,417.25 is: 148,185.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,721.23 : 203,785.61 = 107,417.25 : x
  2. Step 2: Convert to fraction form
    147,721.23/203,785.61 = 107,417.25/x
  3. Step 3: Cross multiply
    147,721.23x = 203,785.61 × 107,417.25
  4. Step 4: Simplify right side
    147,721.23x = 21,890,089,278.69
  5. Step 5: Solve for x
    x = 21,890,089,278.69/147,721.23
  6. Step 6: Final answer
    x = 148,185.13

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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.