Home / 185,699.64-256,271.38-105,125.70

Finding the Fourth Proportional to 185,699.64, 256,271.38 and 105,125.70

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Solution

The fourth proportional to 185,699.64, 256,271.38 and 105,125.70 is: 145,076.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,699.64 : 256,271.38 = 105,125.70 : x
  2. Step 2: Convert to fraction form
    185,699.64/256,271.38 = 105,125.70/x
  3. Step 3: Cross multiply
    185,699.64x = 256,271.38 × 105,125.70
  4. Step 4: Simplify right side
    185,699.64x = 26,940,708,212.47
  5. Step 5: Solve for x
    x = 26,940,708,212.47/185,699.64
  6. Step 6: Final answer
    x = 145,076.79

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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.