Home / 218,759.16-328,157.27-60,987.76

Finding the Fourth Proportional to 218,759.16, 328,157.27 and 60,987.76

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Solution

The fourth proportional to 218,759.16, 328,157.27 and 60,987.76 is: 91,486.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,759.16 : 328,157.27 = 60,987.76 : x
  2. Step 2: Convert to fraction form
    218,759.16/328,157.27 = 60,987.76/x
  3. Step 3: Cross multiply
    218,759.16x = 328,157.27 × 60,987.76
  4. Step 4: Simplify right side
    218,759.16x = 20,013,576,825.02
  5. Step 5: Solve for x
    x = 20,013,576,825.02/218,759.16
  6. Step 6: Final answer
    x = 91,486.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.