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Finding the Fourth Proportional to 100,376.76, 150,302.10 and 70,633.56

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Solution

The fourth proportional to 100,376.76, 150,302.10 and 70,633.56 is: 105,765.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,376.76 : 150,302.10 = 70,633.56 : x
  2. Step 2: Convert to fraction form
    100,376.76/150,302.10 = 70,633.56/x
  3. Step 3: Cross multiply
    100,376.76x = 150,302.10 × 70,633.56
  4. Step 4: Simplify right side
    100,376.76x = 10,616,372,398.48
  5. Step 5: Solve for x
    x = 10,616,372,398.48/100,376.76
  6. Step 6: Final answer
    x = 105,765.24

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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.