Home / 105,981.12-146,256.48-58,239

Finding the Fourth Proportional to 105,981.12, 146,256.48 and 58,239

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Solution

The fourth proportional to 105,981.12, 146,256.48 and 58,239 is: 80,371.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,981.12 : 146,256.48 = 58,239 : x
  2. Step 2: Convert to fraction form
    105,981.12/146,256.48 = 58,239/x
  3. Step 3: Cross multiply
    105,981.12x = 146,256.48 × 58,239
  4. Step 4: Simplify right side
    105,981.12x = 8,517,831,138.72
  5. Step 5: Solve for x
    x = 8,517,831,138.72/105,981.12
  6. Step 6: Final answer
    x = 80,371.21

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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.