Home / 140,745.12-194,221.02-77,070.60

Finding the Fourth Proportional to 140,745.12, 194,221.02 and 77,070.60

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Solution

The fourth proportional to 140,745.12, 194,221.02 and 77,070.60 is: 106,353.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,745.12 : 194,221.02 = 77,070.60 : x
  2. Step 2: Convert to fraction form
    140,745.12/194,221.02 = 77,070.60/x
  3. Step 3: Cross multiply
    140,745.12x = 194,221.02 × 77,070.60
  4. Step 4: Simplify right side
    140,745.12x = 14,968,730,544.01
  5. Step 5: Solve for x
    x = 14,968,730,544.01/140,745.12
  6. Step 6: Final answer
    x = 106,353.46

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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.