Home / 109,208.84-163,805.26-42,636.36

Finding the Fourth Proportional to 109,208.84, 163,805.26 and 42,636.36

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Solution

The fourth proportional to 109,208.84, 163,805.26 and 42,636.36 is: 63,951.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,208.84 : 163,805.26 = 42,636.36 : x
  2. Step 2: Convert to fraction form
    109,208.84/163,805.26 = 42,636.36/x
  3. Step 3: Cross multiply
    109,208.84x = 163,805.26 × 42,636.36
  4. Step 4: Simplify right side
    109,208.84x = 6,984,060,035.25
  5. Step 5: Solve for x
    x = 6,984,060,035.25/109,208.84
  6. Step 6: Final answer
    x = 63,951.42

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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.