Home / 190,825.20-286,237.80-112,028.40

Finding the Fourth Proportional to 190,825.20, 286,237.80 and 112,028.40

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Solution

The fourth proportional to 190,825.20, 286,237.80 and 112,028.40 is: 168,042.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,825.20 : 286,237.80 = 112,028.40 : x
  2. Step 2: Convert to fraction form
    190,825.20/286,237.80 = 112,028.40/x
  3. Step 3: Cross multiply
    190,825.20x = 286,237.80 × 112,028.40
  4. Step 4: Simplify right side
    190,825.20x = 32,066,762,753.52
  5. Step 5: Solve for x
    x = 32,066,762,753.52/190,825.20
  6. Step 6: Final answer
    x = 168,042.60

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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.