Home / 95,999.40-143,999.10-90,162.60

Finding the Fourth Proportional to 95,999.40, 143,999.10 and 90,162.60

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Solution

The fourth proportional to 95,999.40, 143,999.10 and 90,162.60 is: 135,243.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,999.40 : 143,999.10 = 90,162.60 : x
  2. Step 2: Convert to fraction form
    95,999.40/143,999.10 = 90,162.60/x
  3. Step 3: Cross multiply
    95,999.40x = 143,999.10 × 90,162.60
  4. Step 4: Simplify right side
    95,999.40x = 12,983,333,253.66
  5. Step 5: Solve for x
    x = 12,983,333,253.66/95,999.40
  6. Step 6: Final answer
    x = 135,243.90

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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.