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Finding the Fourth Proportional to 165,866.72, 228,896.22 and 90,415.22

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Solution

The fourth proportional to 165,866.72, 228,896.22 and 90,415.22 is: 124,773.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,866.72 : 228,896.22 = 90,415.22 : x
  2. Step 2: Convert to fraction form
    165,866.72/228,896.22 = 90,415.22/x
  3. Step 3: Cross multiply
    165,866.72x = 228,896.22 × 90,415.22
  4. Step 4: Simplify right side
    165,866.72x = 20,695,700,943.99
  5. Step 5: Solve for x
    x = 20,695,700,943.99/165,866.72
  6. Step 6: Final answer
    x = 124,773.08

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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.