Home / 144,101.70-198,852.10-80,443.53

Finding the Fourth Proportional to 144,101.70, 198,852.10 and 80,443.53

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Solution

The fourth proportional to 144,101.70, 198,852.10 and 80,443.53 is: 111,007.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,101.70 : 198,852.10 = 80,443.53 : x
  2. Step 2: Convert to fraction form
    144,101.70/198,852.10 = 80,443.53/x
  3. Step 3: Cross multiply
    144,101.70x = 198,852.10 × 80,443.53
  4. Step 4: Simplify right side
    144,101.70x = 15,996,364,670.80
  5. Step 5: Solve for x
    x = 15,996,364,670.80/144,101.70
  6. Step 6: Final answer
    x = 111,007.47

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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.