Home / 189,861.04-261,997.77-104,972.50

Finding the Fourth Proportional to 189,861.04, 261,997.77 and 104,972.50

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Solution

The fourth proportional to 189,861.04, 261,997.77 and 104,972.50 is: 144,856.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,861.04 : 261,997.77 = 104,972.50 : x
  2. Step 2: Convert to fraction form
    189,861.04/261,997.77 = 104,972.50/x
  3. Step 3: Cross multiply
    189,861.04x = 261,997.77 × 104,972.50
  4. Step 4: Simplify right side
    189,861.04x = 27,502,560,911.33
  5. Step 5: Solve for x
    x = 27,502,560,911.33/189,861.04
  6. Step 6: Final answer
    x = 144,856.26

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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.