Home / 102,031.67-152,599.85-90,865.75

Finding the Fourth Proportional to 102,031.67, 152,599.85 and 90,865.75

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Solution

The fourth proportional to 102,031.67, 152,599.85 and 90,865.75 is: 135,899.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,031.67 : 152,599.85 = 90,865.75 : x
  2. Step 2: Convert to fraction form
    102,031.67/152,599.85 = 90,865.75/x
  3. Step 3: Cross multiply
    102,031.67x = 152,599.85 × 90,865.75
  4. Step 4: Simplify right side
    102,031.67x = 13,866,100,238.05
  5. Step 5: Solve for x
    x = 13,866,100,238.05/102,031.67
  6. Step 6: Final answer
    x = 135,899.97

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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.