Home / 145,072.86-217,676.34-66,211.26

Finding the Fourth Proportional to 145,072.86, 217,676.34 and 66,211.26

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Solution

The fourth proportional to 145,072.86, 217,676.34 and 66,211.26 is: 99,347.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,072.86 : 217,676.34 = 66,211.26 : x
  2. Step 2: Convert to fraction form
    145,072.86/217,676.34 = 66,211.26/x
  3. Step 3: Cross multiply
    145,072.86x = 217,676.34 × 66,211.26
  4. Step 4: Simplify right side
    145,072.86x = 14,412,624,743.59
  5. Step 5: Solve for x
    x = 14,412,624,743.59/145,072.86
  6. Step 6: Final answer
    x = 99,347.49

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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.