Home / 128,118.09-192,177.14-64,928.37

Finding the Fourth Proportional to 128,118.09, 192,177.14 and 64,928.37

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Solution

The fourth proportional to 128,118.09, 192,177.14 and 64,928.37 is: 97,392.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,118.09 : 192,177.14 = 64,928.37 : x
  2. Step 2: Convert to fraction form
    128,118.09/192,177.14 = 64,928.37/x
  3. Step 3: Cross multiply
    128,118.09x = 192,177.14 × 64,928.37
  4. Step 4: Simplify right side
    128,118.09x = 12,477,748,451.46
  5. Step 5: Solve for x
    x = 12,477,748,451.46/128,118.09
  6. Step 6: Final answer
    x = 97,392.56

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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.