Home / 157,822.50-217,795.05-90,754.50

Finding the Fourth Proportional to 157,822.50, 217,795.05 and 90,754.50

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Solution

The fourth proportional to 157,822.50, 217,795.05 and 90,754.50 is: 125,241.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,822.50 : 217,795.05 = 90,754.50 : x
  2. Step 2: Convert to fraction form
    157,822.50/217,795.05 = 90,754.50/x
  3. Step 3: Cross multiply
    157,822.50x = 217,795.05 × 90,754.50
  4. Step 4: Simplify right side
    157,822.50x = 19,765,880,865.23
  5. Step 5: Solve for x
    x = 19,765,880,865.23/157,822.50
  6. Step 6: Final answer
    x = 125,241.21

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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.