Home / 126,657.83-190,039.05-55,543.65

Finding the Fourth Proportional to 126,657.83, 190,039.05 and 55,543.65

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Solution

The fourth proportional to 126,657.83, 190,039.05 and 55,543.65 is: 83,338.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,657.83 : 190,039.05 = 55,543.65 : x
  2. Step 2: Convert to fraction form
    126,657.83/190,039.05 = 55,543.65/x
  3. Step 3: Cross multiply
    126,657.83x = 190,039.05 × 55,543.65
  4. Step 4: Simplify right side
    126,657.83x = 10,555,462,479.53
  5. Step 5: Solve for x
    x = 10,555,462,479.53/126,657.83
  6. Step 6: Final answer
    x = 83,338.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.