Home / 189,946.08-262,130.58-105,064.56

Finding the Fourth Proportional to 189,946.08, 262,130.58 and 105,064.56

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Solution

The fourth proportional to 189,946.08, 262,130.58 and 105,064.56 is: 144,991.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,946.08 : 262,130.58 = 105,064.56 : x
  2. Step 2: Convert to fraction form
    189,946.08/262,130.58 = 105,064.56/x
  3. Step 3: Cross multiply
    189,946.08x = 262,130.58 × 105,064.56
  4. Step 4: Simplify right side
    189,946.08x = 27,540,634,050.24
  5. Step 5: Solve for x
    x = 27,540,634,050.24/189,946.08
  6. Step 6: Final answer
    x = 144,991.85

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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.