Home / 190,108.05-262,321.65-105,224.91

Finding the Fourth Proportional to 190,108.05, 262,321.65 and 105,224.91

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Solution

The fourth proportional to 190,108.05, 262,321.65 and 105,224.91 is: 145,195.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,108.05 : 262,321.65 = 105,224.91 : x
  2. Step 2: Convert to fraction form
    190,108.05/262,321.65 = 105,224.91/x
  3. Step 3: Cross multiply
    190,108.05x = 262,321.65 × 105,224.91
  4. Step 4: Simplify right side
    190,108.05x = 27,602,772,012.30
  5. Step 5: Solve for x
    x = 27,602,772,012.30/190,108.05
  6. Step 6: Final answer
    x = 145,195.18

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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.