Home / 136,743,289.40-205,065,167.70-68,563,321.40

Finding the Fourth Proportional to 136,743,289.40, 205,065,167.70 and 68,563,321.40

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Solution

The fourth proportional to 136,743,289.40, 205,065,167.70 and 68,563,321.40 is: 102,820,029.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,743,289.40 : 205,065,167.70 = 68,563,321.40 : x
  2. Step 2: Convert to fraction form
    136,743,289.40/205,065,167.70 = 68,563,321.40/x
  3. Step 3: Cross multiply
    136,743,289.40x = 205,065,167.70 × 68,563,321.40
  4. Step 4: Simplify right side
    136,743,289.40x = 14,059,949,000,960,000
  5. Step 5: Solve for x
    x = 14,059,949,000,960,000/136,743,289.40
  6. Step 6: Final answer
    x = 102,820,029.14

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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.