Home / 156,965.09-235,188.83-90,461.12

Finding the Fourth Proportional to 156,965.09, 235,188.83 and 90,461.12

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Solution

The fourth proportional to 156,965.09, 235,188.83 and 90,461.12 is: 135,542.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,965.09 : 235,188.83 = 90,461.12 : x
  2. Step 2: Convert to fraction form
    156,965.09/235,188.83 = 90,461.12/x
  3. Step 3: Cross multiply
    156,965.09x = 235,188.83 × 90,461.12
  4. Step 4: Simplify right side
    156,965.09x = 21,275,444,023.50
  5. Step 5: Solve for x
    x = 21,275,444,023.50/156,965.09
  6. Step 6: Final answer
    x = 135,542.53

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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.