Home / 109,267.80-163,869.30-42,669.60

Finding the Fourth Proportional to 109,267.80, 163,869.30 and 42,669.60

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Solution

The fourth proportional to 109,267.80, 163,869.30 and 42,669.60 is: 63,991.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,267.80 : 163,869.30 = 42,669.60 : x
  2. Step 2: Convert to fraction form
    109,267.80/163,869.30 = 42,669.60/x
  3. Step 3: Cross multiply
    109,267.80x = 163,869.30 × 42,669.60
  4. Step 4: Simplify right side
    109,267.80x = 6,992,237,483.28
  5. Step 5: Solve for x
    x = 6,992,237,483.28/109,267.80
  6. Step 6: Final answer
    x = 63,991.75

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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.