Home / 189,220.89-261,111.48-104,336.13

Finding the Fourth Proportional to 189,220.89, 261,111.48 and 104,336.13

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Solution

The fourth proportional to 189,220.89, 261,111.48 and 104,336.13 is: 143,976.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,220.89 : 261,111.48 = 104,336.13 : x
  2. Step 2: Convert to fraction form
    189,220.89/261,111.48 = 104,336.13/x
  3. Step 3: Cross multiply
    189,220.89x = 261,111.48 × 104,336.13
  4. Step 4: Simplify right side
    189,220.89x = 27,243,361,321.77
  5. Step 5: Solve for x
    x = 27,243,361,321.77/189,220.89
  6. Step 6: Final answer
    x = 143,976.50

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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.