Home / 140,491.44-193,878.18-76,829.28

Finding the Fourth Proportional to 140,491.44, 193,878.18 and 76,829.28

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Solution

The fourth proportional to 140,491.44, 193,878.18 and 76,829.28 is: 106,024.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,491.44 : 193,878.18 = 76,829.28 : x
  2. Step 2: Convert to fraction form
    140,491.44/193,878.18 = 76,829.28/x
  3. Step 3: Cross multiply
    140,491.44x = 193,878.18 × 76,829.28
  4. Step 4: Simplify right side
    140,491.44x = 14,895,520,977.11
  5. Step 5: Solve for x
    x = 14,895,520,977.11/140,491.44
  6. Step 6: Final answer
    x = 106,024.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.