Home / 191,021.31-263,604.20-106,136.19

Finding the Fourth Proportional to 191,021.31, 263,604.20 and 106,136.19

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Solution

The fourth proportional to 191,021.31, 263,604.20 and 106,136.19 is: 146,465.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,021.31 : 263,604.20 = 106,136.19 : x
  2. Step 2: Convert to fraction form
    191,021.31/263,604.20 = 106,136.19/x
  3. Step 3: Cross multiply
    191,021.31x = 263,604.20 × 106,136.19
  4. Step 4: Simplify right side
    191,021.31x = 27,977,944,925.32
  5. Step 5: Solve for x
    x = 27,977,944,925.32/191,021.31
  6. Step 6: Final answer
    x = 146,465.05

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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.