Home / 128,885.04-193,316.22-35,390.79

Finding the Fourth Proportional to 128,885.04, 193,316.22 and 35,390.79

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Solution

The fourth proportional to 128,885.04, 193,316.22 and 35,390.79 is: 53,083.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,885.04 : 193,316.22 = 35,390.79 : x
  2. Step 2: Convert to fraction form
    128,885.04/193,316.22 = 35,390.79/x
  3. Step 3: Cross multiply
    128,885.04x = 193,316.22 × 35,390.79
  4. Step 4: Simplify right side
    128,885.04x = 6,841,613,745.61
  5. Step 5: Solve for x
    x = 6,841,613,745.61/128,885.04
  6. Step 6: Final answer
    x = 53,083.07

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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.