Home / 185,259.47-255,657.40-100,376.73

Finding the Fourth Proportional to 185,259.47, 255,657.40 and 100,376.73

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Solution

The fourth proportional to 185,259.47, 255,657.40 and 100,376.73 is: 138,519.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,259.47 : 255,657.40 = 100,376.73 : x
  2. Step 2: Convert to fraction form
    185,259.47/255,657.40 = 100,376.73/x
  3. Step 3: Cross multiply
    185,259.47x = 255,657.40 × 100,376.73
  4. Step 4: Simplify right side
    185,259.47x = 25,662,053,561.36
  5. Step 5: Solve for x
    x = 25,662,053,561.36/185,259.47
  6. Step 6: Final answer
    x = 138,519.53

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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.