Home / 122,221.64-168,350.37-86,349.38

Finding the Fourth Proportional to 122,221.64, 168,350.37 and 86,349.38

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Solution

The fourth proportional to 122,221.64, 168,350.37 and 86,349.38 is: 118,939.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,221.64 : 168,350.37 = 86,349.38 : x
  2. Step 2: Convert to fraction form
    122,221.64/168,350.37 = 86,349.38/x
  3. Step 3: Cross multiply
    122,221.64x = 168,350.37 × 86,349.38
  4. Step 4: Simplify right side
    122,221.64x = 14,536,950,072.27
  5. Step 5: Solve for x
    x = 14,536,950,072.27/122,221.64
  6. Step 6: Final answer
    x = 118,939.25

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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.