Home / 137,247.73-189,401.84-76,818.38

Finding the Fourth Proportional to 137,247.73, 189,401.84 and 76,818.38

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Solution

The fourth proportional to 137,247.73, 189,401.84 and 76,818.38 is: 106,009.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,247.73 : 189,401.84 = 76,818.38 : x
  2. Step 2: Convert to fraction form
    137,247.73/189,401.84 = 76,818.38/x
  3. Step 3: Cross multiply
    137,247.73x = 189,401.84 × 76,818.38
  4. Step 4: Simplify right side
    137,247.73x = 14,549,541,906.89
  5. Step 5: Solve for x
    x = 14,549,541,906.89/137,247.73
  6. Step 6: Final answer
    x = 106,009.34

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1.5x scale

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.