Home / 74,788.90-102,998.73-73,155.94

Finding the Fourth Proportional to 74,788.90, 102,998.73 and 73,155.94

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Solution

The fourth proportional to 74,788.90, 102,998.73 and 73,155.94 is: 100,749.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,788.90 : 102,998.73 = 73,155.94 : x
  2. Step 2: Convert to fraction form
    74,788.90/102,998.73 = 73,155.94/x
  3. Step 3: Cross multiply
    74,788.90x = 102,998.73 × 73,155.94
  4. Step 4: Simplify right side
    74,788.90x = 7,534,968,911.96
  5. Step 5: Solve for x
    x = 7,534,968,911.96/74,788.90
  6. Step 6: Final answer
    x = 100,749.83

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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.