Home / 189,836.76-261,980.02-104,959.30

Finding the Fourth Proportional to 189,836.76, 261,980.02 and 104,959.30

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Solution

The fourth proportional to 189,836.76, 261,980.02 and 104,959.30 is: 144,846.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,836.76 : 261,980.02 = 104,959.30 : x
  2. Step 2: Convert to fraction form
    189,836.76/261,980.02 = 104,959.30/x
  3. Step 3: Cross multiply
    189,836.76x = 261,980.02 × 104,959.30
  4. Step 4: Simplify right side
    189,836.76x = 27,497,239,513.19
  5. Step 5: Solve for x
    x = 27,497,239,513.19/189,836.76
  6. Step 6: Final answer
    x = 144,846.76

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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.