Home / 190,011.78-262,212.21-103,970.43

Finding the Fourth Proportional to 190,011.78, 262,212.21 and 103,970.43

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Solution

The fourth proportional to 190,011.78, 262,212.21 and 103,970.43 is: 143,476.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,011.78 : 262,212.21 = 103,970.43 : x
  2. Step 2: Convert to fraction form
    190,011.78/262,212.21 = 103,970.43/x
  3. Step 3: Cross multiply
    190,011.78x = 262,212.21 × 103,970.43
  4. Step 4: Simplify right side
    190,011.78x = 27,262,316,224.95
  5. Step 5: Solve for x
    x = 27,262,316,224.95/190,011.78
  6. Step 6: Final answer
    x = 143,476.98

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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.