Home / 109,408.46-163,948.66-84,411.05

Finding the Fourth Proportional to 109,408.46, 163,948.66 and 84,411.05

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Solution

The fourth proportional to 109,408.46, 163,948.66 and 84,411.05 is: 126,490.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,408.46 : 163,948.66 = 84,411.05 : x
  2. Step 2: Convert to fraction form
    109,408.46/163,948.66 = 84,411.05/x
  3. Step 3: Cross multiply
    109,408.46x = 163,948.66 × 84,411.05
  4. Step 4: Simplify right side
    109,408.46x = 13,839,077,505.92
  5. Step 5: Solve for x
    x = 13,839,077,505.92/109,408.46
  6. Step 6: Final answer
    x = 126,490.02

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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.