Home / 138,917.14-191,705.47-75,255.19

Finding the Fourth Proportional to 138,917.14, 191,705.47 and 75,255.19

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Solution

The fourth proportional to 138,917.14, 191,705.47 and 75,255.19 is: 103,852.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,917.14 : 191,705.47 = 75,255.19 : x
  2. Step 2: Convert to fraction form
    138,917.14/191,705.47 = 75,255.19/x
  3. Step 3: Cross multiply
    138,917.14x = 191,705.47 × 75,255.19
  4. Step 4: Simplify right side
    138,917.14x = 14,426,831,568.89
  5. Step 5: Solve for x
    x = 14,426,831,568.89/138,917.14
  6. Step 6: Final answer
    x = 103,852.06

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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.