Home / 189,725.28-261,820.80-104,841.60

Finding the Fourth Proportional to 189,725.28, 261,820.80 and 104,841.60

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Solution

The fourth proportional to 189,725.28, 261,820.80 and 104,841.60 is: 144,681.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,725.28 : 261,820.80 = 104,841.60 : x
  2. Step 2: Convert to fraction form
    189,725.28/261,820.80 = 104,841.60/x
  3. Step 3: Cross multiply
    189,725.28x = 261,820.80 × 104,841.60
  4. Step 4: Simplify right side
    189,725.28x = 27,449,711,585.28
  5. Step 5: Solve for x
    x = 27,449,711,585.28/189,725.28
  6. Step 6: Final answer
    x = 144,681.36

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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.