Home / 144,345.28-199,195.92-80,683.06

Finding the Fourth Proportional to 144,345.28, 199,195.92 and 80,683.06

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Solution

The fourth proportional to 144,345.28, 199,195.92 and 80,683.06 is: 111,342.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,345.28 : 199,195.92 = 80,683.06 : x
  2. Step 2: Convert to fraction form
    144,345.28/199,195.92 = 80,683.06/x
  3. Step 3: Cross multiply
    144,345.28x = 199,195.92 × 80,683.06
  4. Step 4: Simplify right side
    144,345.28x = 16,071,736,365.12
  5. Step 5: Solve for x
    x = 16,071,736,365.12/144,345.28
  6. Step 6: Final answer
    x = 111,342.31

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1.5x scale

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.