Home / 128,340.91-192,462.15-44,085.36

Finding the Fourth Proportional to 128,340.91, 192,462.15 and 44,085.36

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Solution

The fourth proportional to 128,340.91, 192,462.15 and 44,085.36 is: 66,111.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,340.91 : 192,462.15 = 44,085.36 : x
  2. Step 2: Convert to fraction form
    128,340.91/192,462.15 = 44,085.36/x
  3. Step 3: Cross multiply
    128,340.91x = 192,462.15 × 44,085.36
  4. Step 4: Simplify right side
    128,340.91x = 8,484,763,932.19
  5. Step 5: Solve for x
    x = 8,484,763,932.19/128,340.91
  6. Step 6: Final answer
    x = 66,111.14

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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.