Home / 145,112.89-217,753.37-60,865.55

Finding the Fourth Proportional to 145,112.89, 217,753.37 and 60,865.55

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Solution

The fourth proportional to 145,112.89, 217,753.37 and 60,865.55 is: 91,333.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,112.89 : 217,753.37 = 60,865.55 : x
  2. Step 2: Convert to fraction form
    145,112.89/217,753.37 = 60,865.55/x
  3. Step 3: Cross multiply
    145,112.89x = 217,753.37 × 60,865.55
  4. Step 4: Simplify right side
    145,112.89x = 13,253,678,629.40
  5. Step 5: Solve for x
    x = 13,253,678,629.40/145,112.89
  6. Step 6: Final answer
    x = 91,333.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.