Home / 122,061.03-168,329.66-81,153.51

Finding the Fourth Proportional to 122,061.03, 168,329.66 and 81,153.51

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Solution

The fourth proportional to 122,061.03, 168,329.66 and 81,153.51 is: 111,915.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,061.03 : 168,329.66 = 81,153.51 : x
  2. Step 2: Convert to fraction form
    122,061.03/168,329.66 = 81,153.51/x
  3. Step 3: Cross multiply
    122,061.03x = 168,329.66 × 81,153.51
  4. Step 4: Simplify right side
    122,061.03x = 13,660,542,340.34
  5. Step 5: Solve for x
    x = 13,660,542,340.34/122,061.03
  6. Step 6: Final answer
    x = 111,915.67

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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.