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Finding the Fourth Proportional to 111,810.09, 167,792.90 and 72,269.13

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Solution

The fourth proportional to 111,810.09, 167,792.90 and 72,269.13 is: 108,453.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,810.09 : 167,792.90 = 72,269.13 : x
  2. Step 2: Convert to fraction form
    111,810.09/167,792.90 = 72,269.13/x
  3. Step 3: Cross multiply
    111,810.09x = 167,792.90 × 72,269.13
  4. Step 4: Simplify right side
    111,810.09x = 12,126,246,903.18
  5. Step 5: Solve for x
    x = 12,126,246,903.18/111,810.09
  6. Step 6: Final answer
    x = 108,453.96

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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.