Finding the Fourth Proportional to 124,461.26, 171,706.36 and 72,038.75
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Solution
The fourth proportional to 124,461.26, 171,706.36 and 72,038.75 is: 99,384.43
Step by Step Solution
- Step 1: Write the proportion equation
124,461.26 : 171,706.36 = 72,038.75 : x - Step 2: Convert to fraction form
124,461.26/171,706.36 = 72,038.75/x - Step 3: Cross multiply
124,461.26x = 171,706.36 × 72,038.75 - Step 4: Simplify right side
124,461.26x = 12,369,511,541.45 - Step 5: Solve for x
x = 12,369,511,541.45/124,461.26 - Step 6: Final answer
x = 99,384.43
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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.