Home / 106,487-146,961.96-61,171.28

Finding the Fourth Proportional to 106,487, 146,961.96 and 61,171.28

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Solution

The fourth proportional to 106,487, 146,961.96 and 61,171.28 is: 84,422.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,487 : 146,961.96 = 61,171.28 : x
  2. Step 2: Convert to fraction form
    106,487/146,961.96 = 61,171.28/x
  3. Step 3: Cross multiply
    106,487x = 146,961.96 × 61,171.28
  4. Step 4: Simplify right side
    106,487x = 8,989,851,204.51
  5. Step 5: Solve for x
    x = 8,989,851,204.51/106,487
  6. Step 6: Final answer
    x = 84,422.05

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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.