Home / 189,158.58-261,040.86-104,278.68

Finding the Fourth Proportional to 189,158.58, 261,040.86 and 104,278.68

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Solution

The fourth proportional to 189,158.58, 261,040.86 and 104,278.68 is: 143,905.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,158.58 : 261,040.86 = 104,278.68 : x
  2. Step 2: Convert to fraction form
    189,158.58/261,040.86 = 104,278.68/x
  3. Step 3: Cross multiply
    189,158.58x = 261,040.86 × 104,278.68
  4. Step 4: Simplify right side
    189,158.58x = 27,220,996,306.86
  5. Step 5: Solve for x
    x = 27,220,996,306.86/189,158.58
  6. Step 6: Final answer
    x = 143,905.69

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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.