Home / 218,070.09-326,971.18-84,795

Finding the Fourth Proportional to 218,070.09, 326,971.18 and 84,795

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Solution

The fourth proportional to 218,070.09, 326,971.18 and 84,795 is: 127,140.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,070.09 : 326,971.18 = 84,795 : x
  2. Step 2: Convert to fraction form
    218,070.09/326,971.18 = 84,795/x
  3. Step 3: Cross multiply
    218,070.09x = 326,971.18 × 84,795
  4. Step 4: Simplify right side
    218,070.09x = 27,725,521,208.10
  5. Step 5: Solve for x
    x = 27,725,521,208.10/218,070.09
  6. Step 6: Final answer
    x = 127,140.41

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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.