Home / 189,400.08-261,416.86-108,874.32

Finding the Fourth Proportional to 189,400.08, 261,416.86 and 108,874.32

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Solution

The fourth proportional to 189,400.08, 261,416.86 and 108,874.32 is: 150,272.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,400.08 : 261,416.86 = 108,874.32 : x
  2. Step 2: Convert to fraction form
    189,400.08/261,416.86 = 108,874.32/x
  3. Step 3: Cross multiply
    189,400.08x = 261,416.86 × 108,874.32
  4. Step 4: Simplify right side
    189,400.08x = 28,461,582,869.04
  5. Step 5: Solve for x
    x = 28,461,582,869.04/189,400.08
  6. Step 6: Final answer
    x = 150,272.29

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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.