Finding the Fourth Proportional to 119,742.73, 165,246.12 and 66,029.65
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Solution
The fourth proportional to 119,742.73, 165,246.12 and 66,029.65 is: 91,121.55
Step by Step Solution
- Step 1: Write the proportion equation
119,742.73 : 165,246.12 = 66,029.65 : x - Step 2: Convert to fraction form
119,742.73/165,246.12 = 66,029.65/x - Step 3: Cross multiply
119,742.73x = 165,246.12 × 66,029.65 - Step 4: Simplify right side
119,742.73x = 10,911,142,641.23 - Step 5: Solve for x
x = 10,911,142,641.23/119,742.73 - Step 6: Final answer
x = 91,121.55
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.