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Finding the Fourth Proportional to 111,347.20, 167,409.60 and 109,014.40

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Solution

The fourth proportional to 111,347.20, 167,409.60 and 109,014.40 is: 163,902.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,347.20 : 167,409.60 = 109,014.40 : x
  2. Step 2: Convert to fraction form
    111,347.20/167,409.60 = 109,014.40/x
  3. Step 3: Cross multiply
    111,347.20x = 167,409.60 × 109,014.40
  4. Step 4: Simplify right side
    111,347.20x = 18,250,057,098.24
  5. Step 5: Solve for x
    x = 18,250,057,098.24/111,347.20
  6. Step 6: Final answer
    x = 163,902.25

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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.