Home / 151,761.02-209,433.26-83,777.72

Finding the Fourth Proportional to 151,761.02, 209,433.26 and 83,777.72

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Solution

The fourth proportional to 151,761.02, 209,433.26 and 83,777.72 is: 115,614.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,761.02 : 209,433.26 = 83,777.72 : x
  2. Step 2: Convert to fraction form
    151,761.02/209,433.26 = 83,777.72/x
  3. Step 3: Cross multiply
    151,761.02x = 209,433.26 × 83,777.72
  4. Step 4: Simplify right side
    151,761.02x = 17,545,840,177.25
  5. Step 5: Solve for x
    x = 17,545,840,177.25/151,761.02
  6. Step 6: Final answer
    x = 115,614.94

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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.