Home / 144,290.49-199,117.05-80,628.81

Finding the Fourth Proportional to 144,290.49, 199,117.05 and 80,628.81

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Solution

The fourth proportional to 144,290.49, 199,117.05 and 80,628.81 is: 111,265.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,290.49 : 199,117.05 = 80,628.81 : x
  2. Step 2: Convert to fraction form
    144,290.49/199,117.05 = 80,628.81/x
  3. Step 3: Cross multiply
    144,290.49x = 199,117.05 × 80,628.81
  4. Step 4: Simplify right side
    144,290.49x = 16,054,569,393.48
  5. Step 5: Solve for x
    x = 16,054,569,393.48/144,290.49
  6. Step 6: Final answer
    x = 111,265.61

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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.