Home / 109,276.68-163,936.80-34,415.70

Finding the Fourth Proportional to 109,276.68, 163,936.80 and 34,415.70

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Solution

The fourth proportional to 109,276.68, 163,936.80 and 34,415.70 is: 51,630.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,276.68 : 163,936.80 = 34,415.70 : x
  2. Step 2: Convert to fraction form
    109,276.68/163,936.80 = 34,415.70/x
  3. Step 3: Cross multiply
    109,276.68x = 163,936.80 × 34,415.70
  4. Step 4: Simplify right side
    109,276.68x = 5,641,999,727.76
  5. Step 5: Solve for x
    x = 5,641,999,727.76/109,276.68
  6. Step 6: Final answer
    x = 51,630.41

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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.