Home / 89,170.56-133,852.80-67,047.36

Finding the Fourth Proportional to 89,170.56, 133,852.80 and 67,047.36

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Solution

The fourth proportional to 89,170.56, 133,852.80 and 67,047.36 is: 100,643.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,170.56 : 133,852.80 = 67,047.36 : x
  2. Step 2: Convert to fraction form
    89,170.56/133,852.80 = 67,047.36/x
  3. Step 3: Cross multiply
    89,170.56x = 133,852.80 × 67,047.36
  4. Step 4: Simplify right side
    89,170.56x = 8,974,476,868.61
  5. Step 5: Solve for x
    x = 8,974,476,868.61/89,170.56
  6. Step 6: Final answer
    x = 100,643.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.