Home / 133,161.19-183,762.43-72,731.97

Finding the Fourth Proportional to 133,161.19, 183,762.43 and 72,731.97

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Solution

The fourth proportional to 133,161.19, 183,762.43 and 72,731.97 is: 100,370.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,161.19 : 183,762.43 = 72,731.97 : x
  2. Step 2: Convert to fraction form
    133,161.19/183,762.43 = 72,731.97/x
  3. Step 3: Cross multiply
    133,161.19x = 183,762.43 × 72,731.97
  4. Step 4: Simplify right side
    133,161.19x = 13,365,403,364.06
  5. Step 5: Solve for x
    x = 13,365,403,364.06/133,161.19
  6. Step 6: Final answer
    x = 100,370.11

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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.