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Finding the Fourth Proportional to 101,955.90, 152,933.76 and 66,887.34

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Solution

The fourth proportional to 101,955.90, 152,933.76 and 66,887.34 is: 100,330.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,955.90 : 152,933.76 = 66,887.34 : x
  2. Step 2: Convert to fraction form
    101,955.90/152,933.76 = 66,887.34/x
  3. Step 3: Cross multiply
    101,955.90x = 152,933.76 × 66,887.34
  4. Step 4: Simplify right side
    101,955.90x = 10,229,332,402.60
  5. Step 5: Solve for x
    x = 10,229,332,402.60/101,955.90
  6. Step 6: Final answer
    x = 100,330.95

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1.5x scale

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.