Home / 109,659.14-151,339.72-66,628.66

Finding the Fourth Proportional to 109,659.14, 151,339.72 and 66,628.66

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Solution

The fourth proportional to 109,659.14, 151,339.72 and 66,628.66 is: 91,953.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,659.14 : 151,339.72 = 66,628.66 : x
  2. Step 2: Convert to fraction form
    109,659.14/151,339.72 = 66,628.66/x
  3. Step 3: Cross multiply
    109,659.14x = 151,339.72 × 66,628.66
  4. Step 4: Simplify right side
    109,659.14x = 10,083,563,063.22
  5. Step 5: Solve for x
    x = 10,083,563,063.22/109,659.14
  6. Step 6: Final answer
    x = 91,953.69

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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.