Home / 189,996.84-262,128.96-118,317.51

Finding the Fourth Proportional to 189,996.84, 262,128.96 and 118,317.51

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Solution

The fourth proportional to 189,996.84, 262,128.96 and 118,317.51 is: 163,236.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,996.84 : 262,128.96 = 118,317.51 : x
  2. Step 2: Convert to fraction form
    189,996.84/262,128.96 = 118,317.51/x
  3. Step 3: Cross multiply
    189,996.84x = 262,128.96 × 118,317.51
  4. Step 4: Simplify right side
    189,996.84x = 31,014,445,846.09
  5. Step 5: Solve for x
    x = 31,014,445,846.09/189,996.84
  6. Step 6: Final answer
    x = 163,236.64

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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.