Home / 213,756.68-320,328.30-120,065.24

Finding the Fourth Proportional to 213,756.68, 320,328.30 and 120,065.24

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Solution

The fourth proportional to 213,756.68, 320,328.30 and 120,065.24 is: 179,925.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,756.68 : 320,328.30 = 120,065.24 : x
  2. Step 2: Convert to fraction form
    213,756.68/320,328.30 = 120,065.24/x
  3. Step 3: Cross multiply
    213,756.68x = 320,328.30 × 120,065.24
  4. Step 4: Simplify right side
    213,756.68x = 38,460,294,218.29
  5. Step 5: Solve for x
    x = 38,460,294,218.29/213,756.68
  6. Step 6: Final answer
    x = 179,925.58

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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.