Home / 223,136.56-307,928.96-121,162.02

Finding the Fourth Proportional to 223,136.56, 307,928.96 and 121,162.02

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Solution

The fourth proportional to 223,136.56, 307,928.96 and 121,162.02 is: 167,203.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,136.56 : 307,928.96 = 121,162.02 : x
  2. Step 2: Convert to fraction form
    223,136.56/307,928.96 = 121,162.02/x
  3. Step 3: Cross multiply
    223,136.56x = 307,928.96 × 121,162.02
  4. Step 4: Simplify right side
    223,136.56x = 37,309,294,810.10
  5. Step 5: Solve for x
    x = 37,309,294,810.10/223,136.56
  6. Step 6: Final answer
    x = 167,203.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.