Home / 147,936.16-221,898.48-81,508

Finding the Fourth Proportional to 147,936.16, 221,898.48 and 81,508

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Solution

The fourth proportional to 147,936.16, 221,898.48 and 81,508 is: 122,258.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,936.16 : 221,898.48 = 81,508 : x
  2. Step 2: Convert to fraction form
    147,936.16/221,898.48 = 81,508/x
  3. Step 3: Cross multiply
    147,936.16x = 221,898.48 × 81,508
  4. Step 4: Simplify right side
    147,936.16x = 18,086,501,307.84
  5. Step 5: Solve for x
    x = 18,086,501,307.84/147,936.16
  6. Step 6: Final answer
    x = 122,258.83

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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.