Home / 128,001.36-192,004.83-39,252.90

Finding the Fourth Proportional to 128,001.36, 192,004.83 and 39,252.90

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Solution

The fourth proportional to 128,001.36, 192,004.83 and 39,252.90 is: 58,880.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,001.36 : 192,004.83 = 39,252.90 : x
  2. Step 2: Convert to fraction form
    128,001.36/192,004.83 = 39,252.90/x
  3. Step 3: Cross multiply
    128,001.36x = 192,004.83 × 39,252.90
  4. Step 4: Simplify right side
    128,001.36x = 7,536,746,391.51
  5. Step 5: Solve for x
    x = 7,536,746,391.51/128,001.36
  6. Step 6: Final answer
    x = 58,880.21

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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.