Home / 128,401.39-192,643.09-61,848.25

Finding the Fourth Proportional to 128,401.39, 192,643.09 and 61,848.25

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Solution

The fourth proportional to 128,401.39, 192,643.09 and 61,848.25 is: 92,792.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,401.39 : 192,643.09 = 61,848.25 : x
  2. Step 2: Convert to fraction form
    128,401.39/192,643.09 = 61,848.25/x
  3. Step 3: Cross multiply
    128,401.39x = 192,643.09 × 61,848.25
  4. Step 4: Simplify right side
    128,401.39x = 11,914,637,027.88
  5. Step 5: Solve for x
    x = 11,914,637,027.88/128,401.39
  6. Step 6: Final answer
    x = 92,792.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.