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Finding the Fourth Proportional to 100,528.49, 150,748.45 and 47,235.63

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Solution

The fourth proportional to 100,528.49, 150,748.45 and 47,235.63 is: 70,832.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,528.49 : 150,748.45 = 47,235.63 : x
  2. Step 2: Convert to fraction form
    100,528.49/150,748.45 = 47,235.63/x
  3. Step 3: Cross multiply
    100,528.49x = 150,748.45 × 47,235.63
  4. Step 4: Simplify right side
    100,528.49x = 7,120,697,771.10
  5. Step 5: Solve for x
    x = 7,120,697,771.10/100,528.49
  6. Step 6: Final answer
    x = 70,832.64

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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.