Home / 122,028.17-168,312.08-111,989.03

Finding the Fourth Proportional to 122,028.17, 168,312.08 and 111,989.03

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Solution

The fourth proportional to 122,028.17, 168,312.08 and 111,989.03 is: 154,465.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,028.17 : 168,312.08 = 111,989.03 : x
  2. Step 2: Convert to fraction form
    122,028.17/168,312.08 = 111,989.03/x
  3. Step 3: Cross multiply
    122,028.17x = 168,312.08 × 111,989.03
  4. Step 4: Simplify right side
    122,028.17x = 18,849,106,016.54
  5. Step 5: Solve for x
    x = 18,849,106,016.54/122,028.17
  6. Step 6: Final answer
    x = 154,465.20

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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.