Home / 134,994.39-186,328.26-77,639.91

Finding the Fourth Proportional to 134,994.39, 186,328.26 and 77,639.91

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Solution

The fourth proportional to 134,994.39, 186,328.26 and 77,639.91 is: 107,163.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,994.39 : 186,328.26 = 77,639.91 : x
  2. Step 2: Convert to fraction form
    134,994.39/186,328.26 = 77,639.91/x
  3. Step 3: Cross multiply
    134,994.39x = 186,328.26 × 77,639.91
  4. Step 4: Simplify right side
    134,994.39x = 14,466,509,336.86
  5. Step 5: Solve for x
    x = 14,466,509,336.86/134,994.39
  6. Step 6: Final answer
    x = 107,163.78

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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.