Home / 104,765.49-144,576.50-57,018.78

Finding the Fourth Proportional to 104,765.49, 144,576.50 and 57,018.78

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Solution

The fourth proportional to 104,765.49, 144,576.50 and 57,018.78 is: 78,685.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,765.49 : 144,576.50 = 57,018.78 : x
  2. Step 2: Convert to fraction form
    104,765.49/144,576.50 = 57,018.78/x
  3. Step 3: Cross multiply
    104,765.49x = 144,576.50 × 57,018.78
  4. Step 4: Simplify right side
    104,765.49x = 8,243,575,361.58
  5. Step 5: Solve for x
    x = 8,243,575,361.58/104,765.49
  6. Step 6: Final answer
    x = 78,685.98

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1.5x scale

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.