Home / 189,980.25-262,150.07-105,085.77

Finding the Fourth Proportional to 189,980.25, 262,150.07 and 105,085.77

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Solution

The fourth proportional to 189,980.25, 262,150.07 and 105,085.77 is: 145,005.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,980.25 : 262,150.07 = 105,085.77 : x
  2. Step 2: Convert to fraction form
    189,980.25/262,150.07 = 105,085.77/x
  3. Step 3: Cross multiply
    189,980.25x = 262,150.07 × 105,085.77
  4. Step 4: Simplify right side
    189,980.25x = 27,548,241,436.08
  5. Step 5: Solve for x
    x = 27,548,241,436.08/189,980.25
  6. Step 6: Final answer
    x = 145,005.82

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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.