Home / 189,543.47-261,563.12-104,658.71

Finding the Fourth Proportional to 189,543.47, 261,563.12 and 104,658.71

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Solution

The fourth proportional to 189,543.47, 261,563.12 and 104,658.71 is: 144,425.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,543.47 : 261,563.12 = 104,658.71 : x
  2. Step 2: Convert to fraction form
    189,543.47/261,563.12 = 104,658.71/x
  3. Step 3: Cross multiply
    189,543.47x = 261,563.12 × 104,658.71
  4. Step 4: Simplify right side
    189,543.47x = 27,374,856,891.67
  5. Step 5: Solve for x
    x = 27,374,856,891.67/189,543.47
  6. Step 6: Final answer
    x = 144,425.22

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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.