Home / 190,146.13-262,401.72-105,263.19

Finding the Fourth Proportional to 190,146.13, 262,401.72 and 105,263.19

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Solution

The fourth proportional to 190,146.13, 262,401.72 and 105,263.19 is: 145,263.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,146.13 : 262,401.72 = 105,263.19 : x
  2. Step 2: Convert to fraction form
    190,146.13/262,401.72 = 105,263.19/x
  3. Step 3: Cross multiply
    190,146.13x = 262,401.72 × 105,263.19
  4. Step 4: Simplify right side
    190,146.13x = 27,621,242,108.69
  5. Step 5: Solve for x
    x = 27,621,242,108.69/190,146.13
  6. Step 6: Final answer
    x = 145,263.24

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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.