Home / 190,890.20-286,335.30-102,416.60

Finding the Fourth Proportional to 190,890.20, 286,335.30 and 102,416.60

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Solution

The fourth proportional to 190,890.20, 286,335.30 and 102,416.60 is: 153,624.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,890.20 : 286,335.30 = 102,416.60 : x
  2. Step 2: Convert to fraction form
    190,890.20/286,335.30 = 102,416.60/x
  3. Step 3: Cross multiply
    190,890.20x = 286,335.30 × 102,416.60
  4. Step 4: Simplify right side
    190,890.20x = 29,325,487,885.98
  5. Step 5: Solve for x
    x = 29,325,487,885.98/190,890.20
  6. Step 6: Final answer
    x = 153,624.90

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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.