Home / 191,740.14-265,079.70-143,910.45

Finding the Fourth Proportional to 191,740.14, 265,079.70 and 143,910.45

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Solution

The fourth proportional to 191,740.14, 265,079.70 and 143,910.45 is: 198,955.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,740.14 : 265,079.70 = 143,910.45 : x
  2. Step 2: Convert to fraction form
    191,740.14/265,079.70 = 143,910.45/x
  3. Step 3: Cross multiply
    191,740.14x = 265,079.70 × 143,910.45
  4. Step 4: Simplify right side
    191,740.14x = 38,147,738,912.87
  5. Step 5: Solve for x
    x = 38,147,738,912.87/191,740.14
  6. Step 6: Final answer
    x = 198,955.41

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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.