Home / 142,229.84-196,129.86-122,153.12

Finding the Fourth Proportional to 142,229.84, 196,129.86 and 122,153.12

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Solution

The fourth proportional to 142,229.84, 196,129.86 and 122,153.12 is: 168,444.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,229.84 : 196,129.86 = 122,153.12 : x
  2. Step 2: Convert to fraction form
    142,229.84/196,129.86 = 122,153.12/x
  3. Step 3: Cross multiply
    142,229.84x = 196,129.86 × 122,153.12
  4. Step 4: Simplify right side
    142,229.84x = 23,957,874,324.16
  5. Step 5: Solve for x
    x = 23,957,874,324.16/142,229.84
  6. Step 6: Final answer
    x = 168,444.78

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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.