Home / 189,580.06-261,622.26-107,904.32

Finding the Fourth Proportional to 189,580.06, 261,622.26 and 107,904.32

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Solution

The fourth proportional to 189,580.06, 261,622.26 and 107,904.32 is: 148,908.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,580.06 : 261,622.26 = 107,904.32 : x
  2. Step 2: Convert to fraction form
    189,580.06/261,622.26 = 107,904.32/x
  3. Step 3: Cross multiply
    189,580.06x = 261,622.26 × 107,904.32
  4. Step 4: Simplify right side
    189,580.06x = 28,230,173,120.86
  5. Step 5: Solve for x
    x = 28,230,173,120.86/189,580.06
  6. Step 6: Final answer
    x = 148,908.98

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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.