Home / 128,852.21-177,817.95-96,529.56

Finding the Fourth Proportional to 128,852.21, 177,817.95 and 96,529.56

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Solution

The fourth proportional to 128,852.21, 177,817.95 and 96,529.56 is: 133,212.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,852.21 : 177,817.95 = 96,529.56 : x
  2. Step 2: Convert to fraction form
    128,852.21/177,817.95 = 96,529.56/x
  3. Step 3: Cross multiply
    128,852.21x = 177,817.95 × 96,529.56
  4. Step 4: Simplify right side
    128,852.21x = 17,164,688,473.60
  5. Step 5: Solve for x
    x = 17,164,688,473.60/128,852.21
  6. Step 6: Final answer
    x = 133,212.22

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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.