Home / 139,446.42-192,437.26-75,784.18

Finding the Fourth Proportional to 139,446.42, 192,437.26 and 75,784.18

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Solution

The fourth proportional to 139,446.42, 192,437.26 and 75,784.18 is: 104,582.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,446.42 : 192,437.26 = 75,784.18 : x
  2. Step 2: Convert to fraction form
    139,446.42/192,437.26 = 75,784.18/x
  3. Step 3: Cross multiply
    139,446.42x = 192,437.26 × 75,784.18
  4. Step 4: Simplify right side
    139,446.42x = 14,583,699,950.55
  5. Step 5: Solve for x
    x = 14,583,699,950.55/139,446.42
  6. Step 6: Final answer
    x = 104,582.82

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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.