Home / 152,889.14-210,979.85-84,910.50

Finding the Fourth Proportional to 152,889.14, 210,979.85 and 84,910.50

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Solution

The fourth proportional to 152,889.14, 210,979.85 and 84,910.50 is: 117,172.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,889.14 : 210,979.85 = 84,910.50 : x
  2. Step 2: Convert to fraction form
    152,889.14/210,979.85 = 84,910.50/x
  3. Step 3: Cross multiply
    152,889.14x = 210,979.85 × 84,910.50
  4. Step 4: Simplify right side
    152,889.14x = 17,914,404,128.87
  5. Step 5: Solve for x
    x = 17,914,404,128.87/152,889.14
  6. Step 6: Final answer
    x = 117,172.51

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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.