Home / 133,220.69-183,926.56-85,558.06

Finding the Fourth Proportional to 133,220.69, 183,926.56 and 85,558.06

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Solution

The fourth proportional to 133,220.69, 183,926.56 and 85,558.06 is: 118,122.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,220.69 : 183,926.56 = 85,558.06 : x
  2. Step 2: Convert to fraction form
    133,220.69/183,926.56 = 85,558.06/x
  3. Step 3: Cross multiply
    133,220.69x = 183,926.56 × 85,558.06
  4. Step 4: Simplify right side
    133,220.69x = 15,736,399,656.07
  5. Step 5: Solve for x
    x = 15,736,399,656.07/133,220.69
  6. Step 6: Final answer
    x = 118,122.79

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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.