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Finding the Fourth Proportional to 134,989.50, 186,285.51 and 75,373.50

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Solution

The fourth proportional to 134,989.50, 186,285.51 and 75,373.50 is: 104,015.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,989.50 : 186,285.51 = 75,373.50 : x
  2. Step 2: Convert to fraction form
    134,989.50/186,285.51 = 75,373.50/x
  3. Step 3: Cross multiply
    134,989.50x = 186,285.51 × 75,373.50
  4. Step 4: Simplify right side
    134,989.50x = 14,040,990,887.99
  5. Step 5: Solve for x
    x = 14,040,990,887.99/134,989.50
  6. Step 6: Final answer
    x = 104,015.43

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1.5x scale

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.