Home / 118,035.82-162,875.70-72,072.34

Finding the Fourth Proportional to 118,035.82, 162,875.70 and 72,072.34

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Solution

The fourth proportional to 118,035.82, 162,875.70 and 72,072.34 is: 99,451.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,035.82 : 162,875.70 = 72,072.34 : x
  2. Step 2: Convert to fraction form
    118,035.82/162,875.70 = 72,072.34/x
  3. Step 3: Cross multiply
    118,035.82x = 162,875.70 × 72,072.34
  4. Step 4: Simplify right side
    118,035.82x = 11,738,832,828.14
  5. Step 5: Solve for x
    x = 11,738,832,828.14/118,035.82
  6. Step 6: Final answer
    x = 99,451.44

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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.