Home / 139,418.12-192,398.18-75,755.93

Finding the Fourth Proportional to 139,418.12, 192,398.18 and 75,755.93

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Solution

The fourth proportional to 139,418.12, 192,398.18 and 75,755.93 is: 104,543.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,418.12 : 192,398.18 = 75,755.93 : x
  2. Step 2: Convert to fraction form
    139,418.12/192,398.18 = 75,755.93/x
  3. Step 3: Cross multiply
    139,418.12x = 192,398.18 × 75,755.93
  4. Step 4: Simplify right side
    139,418.12x = 14,575,302,094.22
  5. Step 5: Solve for x
    x = 14,575,302,094.22/139,418.12
  6. Step 6: Final answer
    x = 104,543.81

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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.