Home / 143,711.70-198,316.80-80,048.13

Finding the Fourth Proportional to 143,711.70, 198,316.80 and 80,048.13

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Solution

The fourth proportional to 143,711.70, 198,316.80 and 80,048.13 is: 110,463.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,711.70 : 198,316.80 = 80,048.13 : x
  2. Step 2: Convert to fraction form
    143,711.70/198,316.80 = 80,048.13/x
  3. Step 3: Cross multiply
    143,711.70x = 198,316.80 × 80,048.13
  4. Step 4: Simplify right side
    143,711.70x = 15,874,888,987.58
  5. Step 5: Solve for x
    x = 15,874,888,987.58/143,711.70
  6. Step 6: Final answer
    x = 110,463.44

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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.