Home / 189,935.52-262,162.80-118,273.20

Finding the Fourth Proportional to 189,935.52, 262,162.80 and 118,273.20

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Solution

The fourth proportional to 189,935.52, 262,162.80 and 118,273.20 is: 163,249.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,935.52 : 262,162.80 = 118,273.20 : x
  2. Step 2: Convert to fraction form
    189,935.52/262,162.80 = 118,273.20/x
  3. Step 3: Cross multiply
    189,935.52x = 262,162.80 × 118,273.20
  4. Step 4: Simplify right side
    189,935.52x = 31,006,833,276.96
  5. Step 5: Solve for x
    x = 31,006,833,276.96/189,935.52
  6. Step 6: Final answer
    x = 163,249.26

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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.