Finding the Fourth Proportional to 153,394.08, 211,683.68 and 86,327.52
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Solution
The fourth proportional to 153,394.08, 211,683.68 and 86,327.52 is: 119,131.89
Step by Step Solution
- Step 1: Write the proportion equation
153,394.08 : 211,683.68 = 86,327.52 : x - Step 2: Convert to fraction form
153,394.08/211,683.68 = 86,327.52/x - Step 3: Cross multiply
153,394.08x = 211,683.68 × 86,327.52 - Step 4: Simplify right side
153,394.08x = 18,274,127,118.87 - Step 5: Solve for x
x = 18,274,127,118.87/153,394.08 - Step 6: Final answer
x = 119,131.89
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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.