Home / 139,418.34-192,396.93-75,756.14

Finding the Fourth Proportional to 139,418.34, 192,396.93 and 75,756.14

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Solution

The fourth proportional to 139,418.34, 192,396.93 and 75,756.14 is: 104,543.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,418.34 : 192,396.93 = 75,756.14 : x
  2. Step 2: Convert to fraction form
    139,418.34/192,396.93 = 75,756.14/x
  3. Step 3: Cross multiply
    139,418.34x = 192,396.93 × 75,756.14
  4. Step 4: Simplify right side
    139,418.34x = 14,575,247,802.67
  5. Step 5: Solve for x
    x = 14,575,247,802.67/139,418.34
  6. Step 6: Final answer
    x = 104,543.26

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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.