Home / 190,145.13-262,400.34-105,262.19

Finding the Fourth Proportional to 190,145.13, 262,400.34 and 105,262.19

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Solution

The fourth proportional to 190,145.13, 262,400.34 and 105,262.19 is: 145,261.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,145.13 : 262,400.34 = 105,262.19 : x
  2. Step 2: Convert to fraction form
    190,145.13/262,400.34 = 105,262.19/x
  3. Step 3: Cross multiply
    190,145.13x = 262,400.34 × 105,262.19
  4. Step 4: Simplify right side
    190,145.13x = 27,620,833,133.14
  5. Step 5: Solve for x
    x = 27,620,833,133.14/190,145.13
  6. Step 6: Final answer
    x = 145,261.85

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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.