Home / 190,381.07-262,586.15-136,721.21

Finding the Fourth Proportional to 190,381.07, 262,586.15 and 136,721.21

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Solution

The fourth proportional to 190,381.07, 262,586.15 and 136,721.21 is: 188,574.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,381.07 : 262,586.15 = 136,721.21 : x
  2. Step 2: Convert to fraction form
    190,381.07/262,586.15 = 136,721.21/x
  3. Step 3: Cross multiply
    190,381.07x = 262,586.15 × 136,721.21
  4. Step 4: Simplify right side
    190,381.07x = 35,901,094,160.70
  5. Step 5: Solve for x
    x = 35,901,094,160.70/190,381.07
  6. Step 6: Final answer
    x = 188,574.92

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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.