Home / 145,001.40-200,091.70-80,474.12

Finding the Fourth Proportional to 145,001.40, 200,091.70 and 80,474.12

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Solution

The fourth proportional to 145,001.40, 200,091.70 and 80,474.12 is: 111,048.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,001.40 : 200,091.70 = 80,474.12 : x
  2. Step 2: Convert to fraction form
    145,001.40/200,091.70 = 80,474.12/x
  3. Step 3: Cross multiply
    145,001.40x = 200,091.70 × 80,474.12
  4. Step 4: Simplify right side
    145,001.40x = 16,102,203,476.80
  5. Step 5: Solve for x
    x = 16,102,203,476.80/145,001.40
  6. Step 6: Final answer
    x = 111,048.61

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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.