Home / 213,841.56-320,123.25-129,346.02

Finding the Fourth Proportional to 213,841.56, 320,123.25 and 129,346.02

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Solution

The fourth proportional to 213,841.56, 320,123.25 and 129,346.02 is: 193,632.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,841.56 : 320,123.25 = 129,346.02 : x
  2. Step 2: Convert to fraction form
    213,841.56/320,123.25 = 129,346.02/x
  3. Step 3: Cross multiply
    213,841.56x = 320,123.25 × 129,346.02
  4. Step 4: Simplify right side
    213,841.56x = 41,406,668,296.97
  5. Step 5: Solve for x
    x = 41,406,668,296.97/213,841.56
  6. Step 6: Final answer
    x = 193,632.46

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1.5x scale

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.