Home / 128,534.60-192,456.30-93,283.40

Finding the Fourth Proportional to 128,534.60, 192,456.30 and 93,283.40

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Solution

The fourth proportional to 128,534.60, 192,456.30 and 93,283.40 is: 139,674.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,534.60 : 192,456.30 = 93,283.40 : x
  2. Step 2: Convert to fraction form
    128,534.60/192,456.30 = 93,283.40/x
  3. Step 3: Cross multiply
    128,534.60x = 192,456.30 × 93,283.40
  4. Step 4: Simplify right side
    128,534.60x = 17,952,978,015.42
  5. Step 5: Solve for x
    x = 17,952,978,015.42/128,534.60
  6. Step 6: Final answer
    x = 139,674.28

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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.