Home / 119,845.16-179,627.76-90,167.64

Finding the Fourth Proportional to 119,845.16, 179,627.76 and 90,167.64

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Solution

The fourth proportional to 119,845.16, 179,627.76 and 90,167.64 is: 135,146.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,845.16 : 179,627.76 = 90,167.64 : x
  2. Step 2: Convert to fraction form
    119,845.16/179,627.76 = 90,167.64/x
  3. Step 3: Cross multiply
    119,845.16x = 179,627.76 × 90,167.64
  4. Step 4: Simplify right side
    119,845.16x = 16,196,611,197.69
  5. Step 5: Solve for x
    x = 16,196,611,197.69/119,845.16
  6. Step 6: Final answer
    x = 135,146.14

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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.