Home / 154,212.64-212,911.44-118,334.56

Finding the Fourth Proportional to 154,212.64, 212,911.44 and 118,334.56

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Solution

The fourth proportional to 154,212.64, 212,911.44 and 118,334.56 is: 163,376.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,212.64 : 212,911.44 = 118,334.56 : x
  2. Step 2: Convert to fraction form
    154,212.64/212,911.44 = 118,334.56/x
  3. Step 3: Cross multiply
    154,212.64x = 212,911.44 × 118,334.56
  4. Step 4: Simplify right side
    154,212.64x = 25,194,781,571.37
  5. Step 5: Solve for x
    x = 25,194,781,571.37/154,212.64
  6. Step 6: Final answer
    x = 163,376.89

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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.