Home / 101,822.20-152,603.70-90,676.60

Finding the Fourth Proportional to 101,822.20, 152,603.70 and 90,676.60

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Solution

The fourth proportional to 101,822.20, 152,603.70 and 90,676.60 is: 135,899.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,822.20 : 152,603.70 = 90,676.60 : x
  2. Step 2: Convert to fraction form
    101,822.20/152,603.70 = 90,676.60/x
  3. Step 3: Cross multiply
    101,822.20x = 152,603.70 × 90,676.60
  4. Step 4: Simplify right side
    101,822.20x = 13,837,584,663.42
  5. Step 5: Solve for x
    x = 13,837,584,663.42/101,822.20
  6. Step 6: Final answer
    x = 135,899.49

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1.5x scale

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.