Home / 105,411.27-158,138.07-38,851.74

Finding the Fourth Proportional to 105,411.27, 158,138.07 and 38,851.74

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Solution

The fourth proportional to 105,411.27, 158,138.07 and 38,851.74 is: 58,285.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,411.27 : 158,138.07 = 38,851.74 : x
  2. Step 2: Convert to fraction form
    105,411.27/158,138.07 = 38,851.74/x
  3. Step 3: Cross multiply
    105,411.27x = 158,138.07 × 38,851.74
  4. Step 4: Simplify right side
    105,411.27x = 6,143,939,179.74
  5. Step 5: Solve for x
    x = 6,143,939,179.74/105,411.27
  6. Step 6: Final answer
    x = 58,285.41

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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.