Home / 106,435.81-146,878.27-58,689.15

Finding the Fourth Proportional to 106,435.81, 146,878.27 and 58,689.15

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Solution

The fourth proportional to 106,435.81, 146,878.27 and 58,689.15 is: 80,989.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,435.81 : 146,878.27 = 58,689.15 : x
  2. Step 2: Convert to fraction form
    106,435.81/146,878.27 = 58,689.15/x
  3. Step 3: Cross multiply
    106,435.81x = 146,878.27 × 58,689.15
  4. Step 4: Simplify right side
    106,435.81x = 8,620,160,819.77
  5. Step 5: Solve for x
    x = 8,620,160,819.77/106,435.81
  6. Step 6: Final answer
    x = 80,989.29

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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.