Home / 190,146.27-262,420.12-105,263.34

Finding the Fourth Proportional to 190,146.27, 262,420.12 and 105,263.34

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Solution

The fourth proportional to 190,146.27, 262,420.12 and 105,263.34 is: 145,273.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,146.27 : 262,420.12 = 105,263.34 : x
  2. Step 2: Convert to fraction form
    190,146.27/262,420.12 = 105,263.34/x
  3. Step 3: Cross multiply
    190,146.27x = 262,420.12 × 105,263.34
  4. Step 4: Simplify right side
    190,146.27x = 27,623,218,314.40
  5. Step 5: Solve for x
    x = 27,623,218,314.40/190,146.27
  6. Step 6: Final answer
    x = 145,273.52

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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.