Home / 106,787.76-147,378.16-61,467.44

Finding the Fourth Proportional to 106,787.76, 147,378.16 and 61,467.44

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Solution

The fourth proportional to 106,787.76, 147,378.16 and 61,467.44 is: 84,831.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,787.76 : 147,378.16 = 61,467.44 : x
  2. Step 2: Convert to fraction form
    106,787.76/147,378.16 = 61,467.44/x
  3. Step 3: Cross multiply
    106,787.76x = 147,378.16 × 61,467.44
  4. Step 4: Simplify right side
    106,787.76x = 9,058,958,207.11
  5. Step 5: Solve for x
    x = 9,058,958,207.11/106,787.76
  6. Step 6: Final answer
    x = 84,831.43

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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.