Home / 148,857.84-205,365.64-85,161.52

Finding the Fourth Proportional to 148,857.84, 205,365.64 and 85,161.52

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Solution

The fourth proportional to 148,857.84, 205,365.64 and 85,161.52 is: 117,489.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,857.84 : 205,365.64 = 85,161.52 : x
  2. Step 2: Convert to fraction form
    148,857.84/205,365.64 = 85,161.52/x
  3. Step 3: Cross multiply
    148,857.84x = 205,365.64 × 85,161.52
  4. Step 4: Simplify right side
    148,857.84x = 17,489,250,058.17
  5. Step 5: Solve for x
    x = 17,489,250,058.17/148,857.84
  6. Step 6: Final answer
    x = 117,489.61

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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.