Home / 137,595.54-189,883.77-83,140.15

Finding the Fourth Proportional to 137,595.54, 189,883.77 and 83,140.15

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Solution

The fourth proportional to 137,595.54, 189,883.77 and 83,140.15 is: 114,734.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,595.54 : 189,883.77 = 83,140.15 : x
  2. Step 2: Convert to fraction form
    137,595.54/189,883.77 = 83,140.15/x
  3. Step 3: Cross multiply
    137,595.54x = 189,883.77 × 83,140.15
  4. Step 4: Simplify right side
    137,595.54x = 15,786,964,389.70
  5. Step 5: Solve for x
    x = 15,786,964,389.70/137,595.54
  6. Step 6: Final answer
    x = 114,734.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.