Home / 128,848.90-193,021.62-88,773.34

Finding the Fourth Proportional to 128,848.90, 193,021.62 and 88,773.34

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Solution

The fourth proportional to 128,848.90, 193,021.62 and 88,773.34 is: 132,986.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,848.90 : 193,021.62 = 88,773.34 : x
  2. Step 2: Convert to fraction form
    128,848.90/193,021.62 = 88,773.34/x
  3. Step 3: Cross multiply
    128,848.90x = 193,021.62 × 88,773.34
  4. Step 4: Simplify right side
    128,848.90x = 17,135,173,899.61
  5. Step 5: Solve for x
    x = 17,135,173,899.61/128,848.90
  6. Step 6: Final answer
    x = 132,986.57

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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.