Home / 189,921.97-262,173.02-118,337.36

Finding the Fourth Proportional to 189,921.97, 262,173.02 and 118,337.36

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Solution

The fourth proportional to 189,921.97, 262,173.02 and 118,337.36 is: 163,355.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,921.97 : 262,173.02 = 118,337.36 : x
  2. Step 2: Convert to fraction form
    189,921.97/262,173.02 = 118,337.36/x
  3. Step 3: Cross multiply
    189,921.97x = 262,173.02 × 118,337.36
  4. Step 4: Simplify right side
    189,921.97x = 31,024,864,001.30
  5. Step 5: Solve for x
    x = 31,024,864,001.30/189,921.97
  6. Step 6: Final answer
    x = 163,355.84

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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.