Home / 128,533.60-192,454.80-93,282.40

Finding the Fourth Proportional to 128,533.60, 192,454.80 and 93,282.40

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Solution

The fourth proportional to 128,533.60, 192,454.80 and 93,282.40 is: 139,672.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,533.60 : 192,454.80 = 93,282.40 : x
  2. Step 2: Convert to fraction form
    128,533.60/192,454.80 = 93,282.40/x
  3. Step 3: Cross multiply
    128,533.60x = 192,454.80 × 93,282.40
  4. Step 4: Simplify right side
    128,533.60x = 17,952,645,635.52
  5. Step 5: Solve for x
    x = 17,952,645,635.52/128,533.60
  6. Step 6: Final answer
    x = 139,672.78

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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.