Home / 128,883.84-193,355.28-40,132.32

Finding the Fourth Proportional to 128,883.84, 193,355.28 and 40,132.32

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Solution

The fourth proportional to 128,883.84, 193,355.28 and 40,132.32 is: 60,207.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,883.84 : 193,355.28 = 40,132.32 : x
  2. Step 2: Convert to fraction form
    128,883.84/193,355.28 = 40,132.32/x
  3. Step 3: Cross multiply
    128,883.84x = 193,355.28 × 40,132.32
  4. Step 4: Simplify right side
    128,883.84x = 7,759,795,970.65
  5. Step 5: Solve for x
    x = 7,759,795,970.65/128,883.84
  6. Step 6: Final answer
    x = 60,207.67

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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.