Home / 190,133.88-262,309.92-122,141.40

Finding the Fourth Proportional to 190,133.88, 262,309.92 and 122,141.40

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Solution

The fourth proportional to 190,133.88, 262,309.92 and 122,141.40 is: 168,507.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,133.88 : 262,309.92 = 122,141.40 : x
  2. Step 2: Convert to fraction form
    190,133.88/262,309.92 = 122,141.40/x
  3. Step 3: Cross multiply
    190,133.88x = 262,309.92 × 122,141.40
  4. Step 4: Simplify right side
    190,133.88x = 32,038,900,862.69
  5. Step 5: Solve for x
    x = 32,038,900,862.69/190,133.88
  6. Step 6: Final answer
    x = 168,507.06

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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.