Home / 128,106.90-192,235.23-92,533.14

Finding the Fourth Proportional to 128,106.90, 192,235.23 and 92,533.14

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Solution

The fourth proportional to 128,106.90, 192,235.23 and 92,533.14 is: 138,853.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,106.90 : 192,235.23 = 92,533.14 : x
  2. Step 2: Convert to fraction form
    128,106.90/192,235.23 = 92,533.14/x
  3. Step 3: Cross multiply
    128,106.90x = 192,235.23 × 92,533.14
  4. Step 4: Simplify right side
    128,106.90x = 17,788,129,450.52
  5. Step 5: Solve for x
    x = 17,788,129,450.52/128,106.90
  6. Step 6: Final answer
    x = 138,853.80

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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.