Home / 190,904.80-286,357.20-57,805.60

Finding the Fourth Proportional to 190,904.80, 286,357.20 and 57,805.60

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Solution

The fourth proportional to 190,904.80, 286,357.20 and 57,805.60 is: 86,708.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,904.80 : 286,357.20 = 57,805.60 : x
  2. Step 2: Convert to fraction form
    190,904.80/286,357.20 = 57,805.60/x
  3. Step 3: Cross multiply
    190,904.80x = 286,357.20 × 57,805.60
  4. Step 4: Simplify right side
    190,904.80x = 16,553,049,760.32
  5. Step 5: Solve for x
    x = 16,553,049,760.32/190,904.80
  6. Step 6: Final answer
    x = 86,708.40

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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.