Home / 190,312.56-262,659.29-109,724.31

Finding the Fourth Proportional to 190,312.56, 262,659.29 and 109,724.31

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Solution

The fourth proportional to 190,312.56, 262,659.29 and 109,724.31 is: 151,435.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,312.56 : 262,659.29 = 109,724.31 : x
  2. Step 2: Convert to fraction form
    190,312.56/262,659.29 = 109,724.31/x
  3. Step 3: Cross multiply
    190,312.56x = 262,659.29 × 109,724.31
  4. Step 4: Simplify right side
    190,312.56x = 28,820,108,811.72
  5. Step 5: Solve for x
    x = 28,820,108,811.72/190,312.56
  6. Step 6: Final answer
    x = 151,435.66

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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.