Home / 191,786.74-285,415.65-185,400.91

Finding the Fourth Proportional to 191,786.74, 285,415.65 and 185,400.91

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Solution

The fourth proportional to 191,786.74, 285,415.65 and 185,400.91 is: 275,912.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,786.74 : 285,415.65 = 185,400.91 : x
  2. Step 2: Convert to fraction form
    191,786.74/285,415.65 = 185,400.91/x
  3. Step 3: Cross multiply
    191,786.74x = 285,415.65 × 185,400.91
  4. Step 4: Simplify right side
    191,786.74x = 52,916,318,884.16
  5. Step 5: Solve for x
    x = 52,916,318,884.16/191,786.74
  6. Step 6: Final answer
    x = 275,912.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.