Home / 235,917.84-325,570.33-128,487.79

Finding the Fourth Proportional to 235,917.84, 325,570.33 and 128,487.79

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Solution

The fourth proportional to 235,917.84, 325,570.33 and 128,487.79 is: 177,315.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,917.84 : 325,570.33 = 128,487.79 : x
  2. Step 2: Convert to fraction form
    235,917.84/325,570.33 = 128,487.79/x
  3. Step 3: Cross multiply
    235,917.84x = 325,570.33 × 128,487.79
  4. Step 4: Simplify right side
    235,917.84x = 41,831,812,191.27
  5. Step 5: Solve for x
    x = 41,831,812,191.27/235,917.84
  6. Step 6: Final answer
    x = 177,315.17

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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.