Home / 190,219.55-262,510.88-105,336.61

Finding the Fourth Proportional to 190,219.55, 262,510.88 and 105,336.61

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Solution

The fourth proportional to 190,219.55, 262,510.88 and 105,336.61 is: 145,368.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,219.55 : 262,510.88 = 105,336.61 : x
  2. Step 2: Convert to fraction form
    190,219.55/262,510.88 = 105,336.61/x
  3. Step 3: Cross multiply
    190,219.55x = 262,510.88 × 105,336.61
  4. Step 4: Simplify right side
    190,219.55x = 27,652,005,004.36
  5. Step 5: Solve for x
    x = 27,652,005,004.36/190,219.55
  6. Step 6: Final answer
    x = 145,368.89

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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.