Home / 97,885.51-135,147.01-75,183.91

Finding the Fourth Proportional to 97,885.51, 135,147.01 and 75,183.91

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Solution

The fourth proportional to 97,885.51, 135,147.01 and 75,183.91 is: 103,803.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,885.51 : 135,147.01 = 75,183.91 : x
  2. Step 2: Convert to fraction form
    97,885.51/135,147.01 = 75,183.91/x
  3. Step 3: Cross multiply
    97,885.51x = 135,147.01 × 75,183.91
  4. Step 4: Simplify right side
    97,885.51x = 10,160,879,960.87
  5. Step 5: Solve for x
    x = 10,160,879,960.87/97,885.51
  6. Step 6: Final answer
    x = 103,803.72

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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.