Home / 114,941.72-158,529.58-78,664.64

Finding the Fourth Proportional to 114,941.72, 158,529.58 and 78,664.64

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Solution

The fourth proportional to 114,941.72, 158,529.58 and 78,664.64 is: 108,495.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,941.72 : 158,529.58 = 78,664.64 : x
  2. Step 2: Convert to fraction form
    114,941.72/158,529.58 = 78,664.64/x
  3. Step 3: Cross multiply
    114,941.72x = 158,529.58 × 78,664.64
  4. Step 4: Simplify right side
    114,941.72x = 12,470,672,340.05
  5. Step 5: Solve for x
    x = 12,470,672,340.05/114,941.72
  6. Step 6: Final answer
    x = 108,495.61

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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.