Home / 128,117.09-192,175.64-64,927.37

Finding the Fourth Proportional to 128,117.09, 192,175.64 and 64,927.37

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Solution

The fourth proportional to 128,117.09, 192,175.64 and 64,927.37 is: 97,391.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,117.09 : 192,175.64 = 64,927.37 : x
  2. Step 2: Convert to fraction form
    128,117.09/192,175.64 = 64,927.37/x
  3. Step 3: Cross multiply
    128,117.09x = 192,175.64 × 64,927.37
  4. Step 4: Simplify right side
    128,117.09x = 12,477,458,883.27
  5. Step 5: Solve for x
    x = 12,477,458,883.27/128,117.09
  6. Step 6: Final answer
    x = 97,391.06

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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.