Home / 143,799.84-198,444.06-80,136.36

Finding the Fourth Proportional to 143,799.84, 198,444.06 and 80,136.36

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Solution

The fourth proportional to 143,799.84, 198,444.06 and 80,136.36 is: 110,588.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,799.84 : 198,444.06 = 80,136.36 : x
  2. Step 2: Convert to fraction form
    143,799.84/198,444.06 = 80,136.36/x
  3. Step 3: Cross multiply
    143,799.84x = 198,444.06 × 80,136.36
  4. Step 4: Simplify right side
    143,799.84x = 15,902,584,632.02
  5. Step 5: Solve for x
    x = 15,902,584,632.02/143,799.84
  6. Step 6: Final answer
    x = 110,588.33

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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.