Finding the Fourth Proportional to 157,153.18, 216,875.99 and 85,537.84
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Solution
The fourth proportional to 157,153.18, 216,875.99 and 85,537.84 is: 118,044.72
Step by Step Solution
- Step 1: Write the proportion equation
157,153.18 : 216,875.99 = 85,537.84 : x - Step 2: Convert to fraction form
157,153.18/216,875.99 = 85,537.84/x - Step 3: Cross multiply
157,153.18x = 216,875.99 × 85,537.84 - Step 4: Simplify right side
157,153.18x = 18,551,103,304.77 - Step 5: Solve for x
x = 18,551,103,304.77/157,153.18 - Step 6: Final answer
x = 118,044.72
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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.