Home / 151,563.70-209,156.63-83,583.50

Finding the Fourth Proportional to 151,563.70, 209,156.63 and 83,583.50

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Solution

The fourth proportional to 151,563.70, 209,156.63 and 83,583.50 is: 115,344.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,563.70 : 209,156.63 = 83,583.50 : x
  2. Step 2: Convert to fraction form
    151,563.70/209,156.63 = 83,583.50/x
  3. Step 3: Cross multiply
    151,563.70x = 209,156.63 × 83,583.50
  4. Step 4: Simplify right side
    151,563.70x = 17,482,043,915.46
  5. Step 5: Solve for x
    x = 17,482,043,915.46/151,563.70
  6. Step 6: Final answer
    x = 115,344.53

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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.