Home / 190,378.90-262,510.41-129,981.25

Finding the Fourth Proportional to 190,378.90, 262,510.41 and 129,981.25

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Solution

The fourth proportional to 190,378.90, 262,510.41 and 129,981.25 is: 179,229.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,378.90 : 262,510.41 = 129,981.25 : x
  2. Step 2: Convert to fraction form
    190,378.90/262,510.41 = 129,981.25/x
  3. Step 3: Cross multiply
    190,378.90x = 262,510.41 × 129,981.25
  4. Step 4: Simplify right side
    190,378.90x = 34,121,430,573.54
  5. Step 5: Solve for x
    x = 34,121,430,573.54/190,378.90
  6. Step 6: Final answer
    x = 179,229.06

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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.