Home / 88,435.90-122,117.40-85,576.18

Finding the Fourth Proportional to 88,435.90, 122,117.40 and 85,576.18

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Solution

The fourth proportional to 88,435.90, 122,117.40 and 85,576.18 is: 118,168.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,435.90 : 122,117.40 = 85,576.18 : x
  2. Step 2: Convert to fraction form
    88,435.90/122,117.40 = 85,576.18/x
  3. Step 3: Cross multiply
    88,435.90x = 122,117.40 × 85,576.18
  4. Step 4: Simplify right side
    88,435.90x = 10,450,341,145.60
  5. Step 5: Solve for x
    x = 10,450,341,145.60/88,435.90
  6. Step 6: Final answer
    x = 118,168.54

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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.