Home / 149,243.21-205,970.16-111,451.85

Finding the Fourth Proportional to 149,243.21, 205,970.16 and 111,451.85

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Solution

The fourth proportional to 149,243.21, 205,970.16 and 111,451.85 is: 153,814.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,243.21 : 205,970.16 = 111,451.85 : x
  2. Step 2: Convert to fraction form
    149,243.21/205,970.16 = 111,451.85/x
  3. Step 3: Cross multiply
    149,243.21x = 205,970.16 × 111,451.85
  4. Step 4: Simplify right side
    149,243.21x = 22,955,755,376.80
  5. Step 5: Solve for x
    x = 22,955,755,376.80/149,243.21
  6. Step 6: Final answer
    x = 153,814.40

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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.