Home / 88,436.09-122,117.66-85,576.37

Finding the Fourth Proportional to 88,436.09, 122,117.66 and 85,576.37

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Solution

The fourth proportional to 88,436.09, 122,117.66 and 85,576.37 is: 118,168.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,436.09 : 122,117.66 = 85,576.37 : x
  2. Step 2: Convert to fraction form
    88,436.09/122,117.66 = 85,576.37/x
  3. Step 3: Cross multiply
    88,436.09x = 122,117.66 × 85,576.37
  4. Step 4: Simplify right side
    88,436.09x = 10,450,386,185.50
  5. Step 5: Solve for x
    x = 10,450,386,185.50/88,436.09
  6. Step 6: Final answer
    x = 118,168.79

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1.5x scale

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.