Home / 128,988.58-193,408.14-50,010.34

Finding the Fourth Proportional to 128,988.58, 193,408.14 and 50,010.34

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Solution

The fourth proportional to 128,988.58, 193,408.14 and 50,010.34 is: 74,986.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,988.58 : 193,408.14 = 50,010.34 : x
  2. Step 2: Convert to fraction form
    128,988.58/193,408.14 = 50,010.34/x
  3. Step 3: Cross multiply
    128,988.58x = 193,408.14 × 50,010.34
  4. Step 4: Simplify right side
    128,988.58x = 9,672,406,840.17
  5. Step 5: Solve for x
    x = 9,672,406,840.17/128,988.58
  6. Step 6: Final answer
    x = 74,986.54

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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.