Home / 191,020.81-263,603.50-106,135.69

Finding the Fourth Proportional to 191,020.81, 263,603.50 and 106,135.69

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Solution

The fourth proportional to 191,020.81, 263,603.50 and 106,135.69 is: 146,464.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,020.81 : 263,603.50 = 106,135.69 : x
  2. Step 2: Convert to fraction form
    191,020.81/263,603.50 = 106,135.69/x
  3. Step 3: Cross multiply
    191,020.81x = 263,603.50 × 106,135.69
  4. Step 4: Simplify right side
    191,020.81x = 27,977,739,358.92
  5. Step 5: Solve for x
    x = 27,977,739,358.92/191,020.81
  6. Step 6: Final answer
    x = 146,464.35

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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.