Home / 149,367.15-206,124.17-81,384.93

Finding the Fourth Proportional to 149,367.15, 206,124.17 and 81,384.93

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Solution

The fourth proportional to 149,367.15, 206,124.17 and 81,384.93 is: 112,309.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,367.15 : 206,124.17 = 81,384.93 : x
  2. Step 2: Convert to fraction form
    149,367.15/206,124.17 = 81,384.93/x
  3. Step 3: Cross multiply
    149,367.15x = 206,124.17 × 81,384.93
  4. Step 4: Simplify right side
    149,367.15x = 16,775,400,739.83
  5. Step 5: Solve for x
    x = 16,775,400,739.83/149,367.15
  6. Step 6: Final answer
    x = 112,309.84

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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.