Home / 151,739.58-209,404.95-83,760.54

Finding the Fourth Proportional to 151,739.58, 209,404.95 and 83,760.54

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Solution

The fourth proportional to 151,739.58, 209,404.95 and 83,760.54 is: 115,591.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,739.58 : 209,404.95 = 83,760.54 : x
  2. Step 2: Convert to fraction form
    151,739.58/209,404.95 = 83,760.54/x
  3. Step 3: Cross multiply
    151,739.58x = 209,404.95 × 83,760.54
  4. Step 4: Simplify right side
    151,739.58x = 17,539,871,690.67
  5. Step 5: Solve for x
    x = 17,539,871,690.67/151,739.58
  6. Step 6: Final answer
    x = 115,591.94

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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.