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Finding the Fourth Proportional to 109,104.80, 163,624.80 and 42,506.60

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Solution

The fourth proportional to 109,104.80, 163,624.80 and 42,506.60 is: 63,747.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,104.80 : 163,624.80 = 42,506.60 : x
  2. Step 2: Convert to fraction form
    109,104.80/163,624.80 = 42,506.60/x
  3. Step 3: Cross multiply
    109,104.80x = 163,624.80 × 42,506.60
  4. Step 4: Simplify right side
    109,104.80x = 6,955,133,923.68
  5. Step 5: Solve for x
    x = 6,955,133,923.68/109,104.80
  6. Step 6: Final answer
    x = 63,747.28

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1.5x scale

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.