Home / 152,845.90-210,940.68-84,876.10

Finding the Fourth Proportional to 152,845.90, 210,940.68 and 84,876.10

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Solution

The fourth proportional to 152,845.90, 210,940.68 and 84,876.10 is: 117,136.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,845.90 : 210,940.68 = 84,876.10 : x
  2. Step 2: Convert to fraction form
    152,845.90/210,940.68 = 84,876.10/x
  3. Step 3: Cross multiply
    152,845.90x = 210,940.68 × 84,876.10
  4. Step 4: Simplify right side
    152,845.90x = 17,903,822,249.75
  5. Step 5: Solve for x
    x = 17,903,822,249.75/152,845.90
  6. Step 6: Final answer
    x = 117,136.42

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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.