Home / 137,603.23-189,815.56-86,596.92

Finding the Fourth Proportional to 137,603.23, 189,815.56 and 86,596.92

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Solution

The fourth proportional to 137,603.23, 189,815.56 and 86,596.92 is: 119,455.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,603.23 : 189,815.56 = 86,596.92 : x
  2. Step 2: Convert to fraction form
    137,603.23/189,815.56 = 86,596.92/x
  3. Step 3: Cross multiply
    137,603.23x = 189,815.56 × 86,596.92
  4. Step 4: Simplify right side
    137,603.23x = 16,437,442,647.58
  5. Step 5: Solve for x
    x = 16,437,442,647.58/137,603.23
  6. Step 6: Final answer
    x = 119,455.36

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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.