Home / 139,918.33-193,087.95-79,492.29

Finding the Fourth Proportional to 139,918.33, 193,087.95 and 79,492.29

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Solution

The fourth proportional to 139,918.33, 193,087.95 and 79,492.29 is: 109,699.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,918.33 : 193,087.95 = 79,492.29 : x
  2. Step 2: Convert to fraction form
    139,918.33/193,087.95 = 79,492.29/x
  3. Step 3: Cross multiply
    139,918.33x = 193,087.95 × 79,492.29
  4. Step 4: Simplify right side
    139,918.33x = 15,349,003,316.91
  5. Step 5: Solve for x
    x = 15,349,003,316.91/139,918.33
  6. Step 6: Final answer
    x = 109,699.73

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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.