Home / 290,105.36-435,148.88-79,741.52

Finding the Fourth Proportional to 290,105.36, 435,148.88 and 79,741.52

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Solution

The fourth proportional to 290,105.36, 435,148.88 and 79,741.52 is: 119,609.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,105.36 : 435,148.88 = 79,741.52 : x
  2. Step 2: Convert to fraction form
    290,105.36/435,148.88 = 79,741.52/x
  3. Step 3: Cross multiply
    290,105.36x = 435,148.88 × 79,741.52
  4. Step 4: Simplify right side
    290,105.36x = 34,699,433,117.50
  5. Step 5: Solve for x
    x = 34,699,433,117.50/290,105.36
  6. Step 6: Final answer
    x = 119,609.76

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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.