Home / 189,007.73-260,686.55-128,476.33

Finding the Fourth Proportional to 189,007.73, 260,686.55 and 128,476.33

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Solution

The fourth proportional to 189,007.73, 260,686.55 and 128,476.33 is: 177,199.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,007.73 : 260,686.55 = 128,476.33 : x
  2. Step 2: Convert to fraction form
    189,007.73/260,686.55 = 128,476.33/x
  3. Step 3: Cross multiply
    189,007.73x = 260,686.55 × 128,476.33
  4. Step 4: Simplify right side
    189,007.73x = 33,492,050,893.84
  5. Step 5: Solve for x
    x = 33,492,050,893.84/189,007.73
  6. Step 6: Final answer
    x = 177,199.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.