Home / 190,203.74-262,477.95-105,318.98

Finding the Fourth Proportional to 190,203.74, 262,477.95 and 105,318.98

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Solution

The fourth proportional to 190,203.74, 262,477.95 and 105,318.98 is: 145,338.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,203.74 : 262,477.95 = 105,318.98 : x
  2. Step 2: Convert to fraction form
    190,203.74/262,477.95 = 105,318.98/x
  3. Step 3: Cross multiply
    190,203.74x = 262,477.95 × 105,318.98
  4. Step 4: Simplify right side
    190,203.74x = 27,643,909,835.87
  5. Step 5: Solve for x
    x = 27,643,909,835.87/190,203.74
  6. Step 6: Final answer
    x = 145,338.41

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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.