Home / 189,734.50-261,837.36-103,698.80

Finding the Fourth Proportional to 189,734.50, 261,837.36 and 103,698.80

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Solution

The fourth proportional to 189,734.50, 261,837.36 and 103,698.80 is: 143,106.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,734.50 : 261,837.36 = 103,698.80 : x
  2. Step 2: Convert to fraction form
    189,734.50/261,837.36 = 103,698.80/x
  3. Step 3: Cross multiply
    189,734.50x = 261,837.36 × 103,698.80
  4. Step 4: Simplify right side
    189,734.50x = 27,152,220,027.17
  5. Step 5: Solve for x
    x = 27,152,220,027.17/189,734.50
  6. Step 6: Final answer
    x = 143,106.39

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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.