Home / 191,439.84-264,187-106,555.08

Finding the Fourth Proportional to 191,439.84, 264,187 and 106,555.08

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Solution

The fourth proportional to 191,439.84, 264,187 and 106,555.08 is: 147,046.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,439.84 : 264,187 = 106,555.08 : x
  2. Step 2: Convert to fraction form
    191,439.84/264,187 = 106,555.08/x
  3. Step 3: Cross multiply
    191,439.84x = 264,187 × 106,555.08
  4. Step 4: Simplify right side
    191,439.84x = 28,150,466,919.96
  5. Step 5: Solve for x
    x = 28,150,466,919.96/191,439.84
  6. Step 6: Final answer
    x = 147,046.02

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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.