Home / 213,619.60-320,619.48-113,862.16

Finding the Fourth Proportional to 213,619.60, 320,619.48 and 113,862.16

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Solution

The fourth proportional to 213,619.60, 320,619.48 and 113,862.16 is: 170,894.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,619.60 : 320,619.48 = 113,862.16 : x
  2. Step 2: Convert to fraction form
    213,619.60/320,619.48 = 113,862.16/x
  3. Step 3: Cross multiply
    213,619.60x = 320,619.48 × 113,862.16
  4. Step 4: Simplify right side
    213,619.60x = 36,506,426,530.88
  5. Step 5: Solve for x
    x = 36,506,426,530.88/213,619.60
  6. Step 6: Final answer
    x = 170,894.56

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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.