Home / 151,975.20-209,715.24-83,991.50

Finding the Fourth Proportional to 151,975.20, 209,715.24 and 83,991.50

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Solution

The fourth proportional to 151,975.20, 209,715.24 and 83,991.50 is: 115,902.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,975.20 : 209,715.24 = 83,991.50 : x
  2. Step 2: Convert to fraction form
    151,975.20/209,715.24 = 83,991.50/x
  3. Step 3: Cross multiply
    151,975.20x = 209,715.24 × 83,991.50
  4. Step 4: Simplify right side
    151,975.20x = 17,614,297,580.46
  5. Step 5: Solve for x
    x = 17,614,297,580.46/151,975.20
  6. Step 6: Final answer
    x = 115,902.45

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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.