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Finding the Fourth Proportional to 128,010.34, 191,992.43 and 34,494.26

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Solution

The fourth proportional to 128,010.34, 191,992.43 and 34,494.26 is: 51,735.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,010.34 : 191,992.43 = 34,494.26 : x
  2. Step 2: Convert to fraction form
    128,010.34/191,992.43 = 34,494.26/x
  3. Step 3: Cross multiply
    128,010.34x = 191,992.43 × 34,494.26
  4. Step 4: Simplify right side
    128,010.34x = 6,622,636,798.45
  5. Step 5: Solve for x
    x = 6,622,636,798.45/128,010.34
  6. Step 6: Final answer
    x = 51,735.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.