Home / 109,876.11-164,820.60-42,408.51

Finding the Fourth Proportional to 109,876.11, 164,820.60 and 42,408.51

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Solution

The fourth proportional to 109,876.11, 164,820.60 and 42,408.51 is: 63,615.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,876.11 : 164,820.60 = 42,408.51 : x
  2. Step 2: Convert to fraction form
    109,876.11/164,820.60 = 42,408.51/x
  3. Step 3: Cross multiply
    109,876.11x = 164,820.60 × 42,408.51
  4. Step 4: Simplify right side
    109,876.11x = 6,989,796,063.31
  5. Step 5: Solve for x
    x = 6,989,796,063.31/109,876.11
  6. Step 6: Final answer
    x = 63,615.25

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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.