Home / 189,400.62-261,387.63-108,856.26

Finding the Fourth Proportional to 189,400.62, 261,387.63 and 108,856.26

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Solution

The fourth proportional to 189,400.62, 261,387.63 and 108,856.26 is: 150,230.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,400.62 : 261,387.63 = 108,856.26 : x
  2. Step 2: Convert to fraction form
    189,400.62/261,387.63 = 108,856.26/x
  3. Step 3: Cross multiply
    189,400.62x = 261,387.63 × 108,856.26
  4. Step 4: Simplify right side
    189,400.62x = 28,453,679,812.06
  5. Step 5: Solve for x
    x = 28,453,679,812.06/189,400.62
  6. Step 6: Final answer
    x = 150,230.13

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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.