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Finding the Fourth Proportional to 100,074.60, 150,111.06 and 40,868.76

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Solution

The fourth proportional to 100,074.60, 150,111.06 and 40,868.76 is: 61,302.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,074.60 : 150,111.06 = 40,868.76 : x
  2. Step 2: Convert to fraction form
    100,074.60/150,111.06 = 40,868.76/x
  3. Step 3: Cross multiply
    100,074.60x = 150,111.06 × 40,868.76
  4. Step 4: Simplify right side
    100,074.60x = 6,134,852,884.49
  5. Step 5: Solve for x
    x = 6,134,852,884.49/100,074.60
  6. Step 6: Final answer
    x = 61,302.80

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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.