Home / 133,032.16-199,540.95-80,427.52

Finding the Fourth Proportional to 133,032.16, 199,540.95 and 80,427.52

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Solution

The fourth proportional to 133,032.16, 199,540.95 and 80,427.52 is: 120,636.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,032.16 : 199,540.95 = 80,427.52 : x
  2. Step 2: Convert to fraction form
    133,032.16/199,540.95 = 80,427.52/x
  3. Step 3: Cross multiply
    133,032.16x = 199,540.95 × 80,427.52
  4. Step 4: Simplify right side
    133,032.16x = 16,048,583,746.94
  5. Step 5: Solve for x
    x = 16,048,583,746.94/133,032.16
  6. Step 6: Final answer
    x = 120,636.87

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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.