Home / 190,854.20-286,281.30-120,812.60

Finding the Fourth Proportional to 190,854.20, 286,281.30 and 120,812.60

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Solution

The fourth proportional to 190,854.20, 286,281.30 and 120,812.60 is: 181,218.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,854.20 : 286,281.30 = 120,812.60 : x
  2. Step 2: Convert to fraction form
    190,854.20/286,281.30 = 120,812.60/x
  3. Step 3: Cross multiply
    190,854.20x = 286,281.30 × 120,812.60
  4. Step 4: Simplify right side
    190,854.20x = 34,586,388,184.38
  5. Step 5: Solve for x
    x = 34,586,388,184.38/190,854.20
  6. Step 6: Final answer
    x = 181,218.90

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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.