Home / 135,582.14-187,040.07-85,308.86

Finding the Fourth Proportional to 135,582.14, 187,040.07 and 85,308.86

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Solution

The fourth proportional to 135,582.14, 187,040.07 and 85,308.86 is: 117,686.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,582.14 : 187,040.07 = 85,308.86 : x
  2. Step 2: Convert to fraction form
    135,582.14/187,040.07 = 85,308.86/x
  3. Step 3: Cross multiply
    135,582.14x = 187,040.07 × 85,308.86
  4. Step 4: Simplify right side
    135,582.14x = 15,956,175,146.02
  5. Step 5: Solve for x
    x = 15,956,175,146.02/135,582.14
  6. Step 6: Final answer
    x = 117,686.41

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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.