Home / 190,024.32-262,241.28-105,140

Finding the Fourth Proportional to 190,024.32, 262,241.28 and 105,140

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Solution

The fourth proportional to 190,024.32, 262,241.28 and 105,140 is: 145,097.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,024.32 : 262,241.28 = 105,140 : x
  2. Step 2: Convert to fraction form
    190,024.32/262,241.28 = 105,140/x
  3. Step 3: Cross multiply
    190,024.32x = 262,241.28 × 105,140
  4. Step 4: Simplify right side
    190,024.32x = 27,572,048,179.20
  5. Step 5: Solve for x
    x = 27,572,048,179.20/190,024.32
  6. Step 6: Final answer
    x = 145,097.47

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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.