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Finding the Fourth Proportional to 111,271.68, 166,908.24 and 28,165.68

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Solution

The fourth proportional to 111,271.68, 166,908.24 and 28,165.68 is: 42,248.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,271.68 : 166,908.24 = 28,165.68 : x
  2. Step 2: Convert to fraction form
    111,271.68/166,908.24 = 28,165.68/x
  3. Step 3: Cross multiply
    111,271.68x = 166,908.24 × 28,165.68
  4. Step 4: Simplify right side
    111,271.68x = 4,701,084,077.20
  5. Step 5: Solve for x
    x = 4,701,084,077.20/111,271.68
  6. Step 6: Final answer
    x = 42,248.70

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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.