Home / 147,190.50-203,149.40-86,757.62

Finding the Fourth Proportional to 147,190.50, 203,149.40 and 86,757.62

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Solution

The fourth proportional to 147,190.50, 203,149.40 and 86,757.62 is: 119,741.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,190.50 : 203,149.40 = 86,757.62 : x
  2. Step 2: Convert to fraction form
    147,190.50/203,149.40 = 86,757.62/x
  3. Step 3: Cross multiply
    147,190.50x = 203,149.40 × 86,757.62
  4. Step 4: Simplify right side
    147,190.50x = 17,624,756,998.89
  5. Step 5: Solve for x
    x = 17,624,756,998.89/147,190.50
  6. Step 6: Final answer
    x = 119,741.13

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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.