Home / 144,569.96-199,507.56-80,913.68

Finding the Fourth Proportional to 144,569.96, 199,507.56 and 80,913.68

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Solution

The fourth proportional to 144,569.96, 199,507.56 and 80,913.68 is: 111,661.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,569.96 : 199,507.56 = 80,913.68 : x
  2. Step 2: Convert to fraction form
    144,569.96/199,507.56 = 80,913.68/x
  3. Step 3: Cross multiply
    144,569.96x = 199,507.56 × 80,913.68
  4. Step 4: Simplify right side
    144,569.96x = 16,142,890,867.42
  5. Step 5: Solve for x
    x = 16,142,890,867.42/144,569.96
  6. Step 6: Final answer
    x = 111,661.45

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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.