Home / 189,726.64-261,832.84-109,166.40

Finding the Fourth Proportional to 189,726.64, 261,832.84 and 109,166.40

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Solution

The fourth proportional to 189,726.64, 261,832.84 and 109,166.40 is: 150,655.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,726.64 : 261,832.84 = 109,166.40 : x
  2. Step 2: Convert to fraction form
    189,726.64/261,832.84 = 109,166.40/x
  3. Step 3: Cross multiply
    189,726.64x = 261,832.84 × 109,166.40
  4. Step 4: Simplify right side
    189,726.64x = 28,583,348,271.66
  5. Step 5: Solve for x
    x = 28,583,348,271.66/189,726.64
  6. Step 6: Final answer
    x = 150,655.43

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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.