Finding the Fourth Proportional to 157,813.00, 217,781.93 and 86,193.19
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Solution
The fourth proportional to 157,813.00, 217,781.93 and 86,193.19 is: 118,946.60
Step by Step Solution
- Step 1: Write the proportion equation
157,813.00 : 217,781.93 = 86,193.19 : x - Step 2: Convert to fraction form
157,813.00/217,781.93 = 86,193.19/x - Step 3: Cross multiply
157,813.00x = 217,781.93 × 86,193.19 - Step 4: Simplify right side
157,813.00x = 18,771,319,328.07 - Step 5: Solve for x
x = 18,771,319,328.07/157,813.00 - Step 6: Final answer
x = 118,946.60
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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.