Home / 111,477.20-167,090-55,357.36

Finding the Fourth Proportional to 111,477.20, 167,090 and 55,357.36

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Solution

The fourth proportional to 111,477.20, 167,090 and 55,357.36 is: 82,973.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,477.20 : 167,090 = 55,357.36 : x
  2. Step 2: Convert to fraction form
    111,477.20/167,090 = 55,357.36/x
  3. Step 3: Cross multiply
    111,477.20x = 167,090 × 55,357.36
  4. Step 4: Simplify right side
    111,477.20x = 9,249,661,282.40
  5. Step 5: Solve for x
    x = 9,249,661,282.40/111,477.20
  6. Step 6: Final answer
    x = 82,973.57

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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.