Home / 100,095.83-138,135.59-54,772.84

Finding the Fourth Proportional to 100,095.83, 138,135.59 and 54,772.84

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Solution

The fourth proportional to 100,095.83, 138,135.59 and 54,772.84 is: 75,588.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,095.83 : 138,135.59 = 54,772.84 : x
  2. Step 2: Convert to fraction form
    100,095.83/138,135.59 = 54,772.84/x
  3. Step 3: Cross multiply
    100,095.83x = 138,135.59 × 54,772.84
  4. Step 4: Simplify right side
    100,095.83x = 7,566,077,604.83
  5. Step 5: Solve for x
    x = 7,566,077,604.83/100,095.83
  6. Step 6: Final answer
    x = 75,588.34

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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.