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Finding the Fourth Proportional to 109,265.58, 150,777.32 and 66,815.91

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Solution

The fourth proportional to 109,265.58, 150,777.32 and 66,815.91 is: 92,200.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,265.58 : 150,777.32 = 66,815.91 : x
  2. Step 2: Convert to fraction form
    109,265.58/150,777.32 = 66,815.91/x
  3. Step 3: Cross multiply
    109,265.58x = 150,777.32 × 66,815.91
  4. Step 4: Simplify right side
    109,265.58x = 10,074,323,509.08
  5. Step 5: Solve for x
    x = 10,074,323,509.08/109,265.58
  6. Step 6: Final answer
    x = 92,200.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.