Home / 111,827.19-167,519.37-72,412.05

Finding the Fourth Proportional to 111,827.19, 167,519.37 and 72,412.05

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Solution

The fourth proportional to 111,827.19, 167,519.37 and 72,412.05 is: 108,474.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,827.19 : 167,519.37 = 72,412.05 : x
  2. Step 2: Convert to fraction form
    111,827.19/167,519.37 = 72,412.05/x
  3. Step 3: Cross multiply
    111,827.19x = 167,519.37 × 72,412.05
  4. Step 4: Simplify right side
    111,827.19x = 12,130,420,996.41
  5. Step 5: Solve for x
    x = 12,130,420,996.41/111,827.19
  6. Step 6: Final answer
    x = 108,474.70

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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.