Home / 190,848.20-286,272.30-120,806.60

Finding the Fourth Proportional to 190,848.20, 286,272.30 and 120,806.60

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Solution

The fourth proportional to 190,848.20, 286,272.30 and 120,806.60 is: 181,209.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,848.20 : 286,272.30 = 120,806.60 : x
  2. Step 2: Convert to fraction form
    190,848.20/286,272.30 = 120,806.60/x
  3. Step 3: Cross multiply
    190,848.20x = 286,272.30 × 120,806.60
  4. Step 4: Simplify right side
    190,848.20x = 34,583,583,237.18
  5. Step 5: Solve for x
    x = 34,583,583,237.18/190,848.20
  6. Step 6: Final answer
    x = 181,209.90

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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.