Home / 137,257.67-189,533.79-86,355.25

Finding the Fourth Proportional to 137,257.67, 189,533.79 and 86,355.25

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Solution

The fourth proportional to 137,257.67, 189,533.79 and 86,355.25 is: 119,244.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,257.67 : 189,533.79 = 86,355.25 : x
  2. Step 2: Convert to fraction form
    137,257.67/189,533.79 = 86,355.25/x
  3. Step 3: Cross multiply
    137,257.67x = 189,533.79 × 86,355.25
  4. Step 4: Simplify right side
    137,257.67x = 16,367,237,345.06
  5. Step 5: Solve for x
    x = 16,367,237,345.06/137,257.67
  6. Step 6: Final answer
    x = 119,244.61

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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.