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Finding the Fourth Proportional to 134,887.99, 186,145.46 and 74,458.67

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Solution

The fourth proportional to 134,887.99, 186,145.46 and 74,458.67 is: 102,752.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,887.99 : 186,145.46 = 74,458.67 : x
  2. Step 2: Convert to fraction form
    134,887.99/186,145.46 = 74,458.67/x
  3. Step 3: Cross multiply
    134,887.99x = 186,145.46 × 74,458.67
  4. Step 4: Simplify right side
    134,887.99x = 13,860,143,378.14
  5. Step 5: Solve for x
    x = 13,860,143,378.14/134,887.99
  6. Step 6: Final answer
    x = 102,752.98

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.