Home / 144,298.86-199,128.75-80,637.18

Finding the Fourth Proportional to 144,298.86, 199,128.75 and 80,637.18

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Solution

The fourth proportional to 144,298.86, 199,128.75 and 80,637.18 is: 111,277.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,298.86 : 199,128.75 = 80,637.18 : x
  2. Step 2: Convert to fraction form
    144,298.86/199,128.75 = 80,637.18/x
  3. Step 3: Cross multiply
    144,298.86x = 199,128.75 × 80,637.18
  4. Step 4: Simplify right side
    144,298.86x = 16,057,180,856.93
  5. Step 5: Solve for x
    x = 16,057,180,856.93/144,298.86
  6. Step 6: Final answer
    x = 111,277.25

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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.