Home / 190,427.61-262,790.10-105,544.68

Finding the Fourth Proportional to 190,427.61, 262,790.10 and 105,544.68

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Solution

The fourth proportional to 190,427.61, 262,790.10 and 105,544.68 is: 145,651.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,427.61 : 262,790.10 = 105,544.68 : x
  2. Step 2: Convert to fraction form
    190,427.61/262,790.10 = 105,544.68/x
  3. Step 3: Cross multiply
    190,427.61x = 262,790.10 × 105,544.68
  4. Step 4: Simplify right side
    190,427.61x = 27,736,097,011.67
  5. Step 5: Solve for x
    x = 27,736,097,011.67/190,427.61
  6. Step 6: Final answer
    x = 145,651.66

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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.