Home / 213,914.81-320,851.32-56,143.26

Finding the Fourth Proportional to 213,914.81, 320,851.32 and 56,143.26

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Solution

The fourth proportional to 213,914.81, 320,851.32 and 56,143.26 is: 84,209.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,914.81 : 320,851.32 = 56,143.26 : x
  2. Step 2: Convert to fraction form
    213,914.81/320,851.32 = 56,143.26/x
  3. Step 3: Cross multiply
    213,914.81x = 320,851.32 × 56,143.26
  4. Step 4: Simplify right side
    213,914.81x = 18,013,639,080.10
  5. Step 5: Solve for x
    x = 18,013,639,080.10/213,914.81
  6. Step 6: Final answer
    x = 84,209.41

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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.