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Finding the Fourth Proportional to 109,313.65, 163,599.82 and 67,220.18

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Solution

The fourth proportional to 109,313.65, 163,599.82 and 67,220.18 is: 100,602.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,313.65 : 163,599.82 = 67,220.18 : x
  2. Step 2: Convert to fraction form
    109,313.65/163,599.82 = 67,220.18/x
  3. Step 3: Cross multiply
    109,313.65x = 163,599.82 × 67,220.18
  4. Step 4: Simplify right side
    109,313.65x = 10,997,208,530.37
  5. Step 5: Solve for x
    x = 10,997,208,530.37/109,313.65
  6. Step 6: Final answer
    x = 100,602.34

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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.