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Finding the Fourth Proportional to 125,189.37, 172,667.09 and 86,948.97

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Solution

The fourth proportional to 125,189.37, 172,667.09 and 86,948.97 is: 119,924.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,189.37 : 172,667.09 = 86,948.97 : x
  2. Step 2: Convert to fraction form
    125,189.37/172,667.09 = 86,948.97/x
  3. Step 3: Cross multiply
    125,189.37x = 172,667.09 × 86,948.97
  4. Step 4: Simplify right side
    125,189.37x = 15,013,225,198.27
  5. Step 5: Solve for x
    x = 15,013,225,198.27/125,189.37
  6. Step 6: Final answer
    x = 119,924.12

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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.