Finding the Fourth Proportional to 122,312.95, 168,714.18 and 88,371.31
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Solution
The fourth proportional to 122,312.95, 168,714.18 and 88,371.31 is: 121,896.28
Step by Step Solution
- Step 1: Write the proportion equation
122,312.95 : 168,714.18 = 88,371.31 : x - Step 2: Convert to fraction form
122,312.95/168,714.18 = 88,371.31/x - Step 3: Cross multiply
122,312.95x = 168,714.18 × 88,371.31 - Step 4: Simplify right side
122,312.95x = 14,909,493,102.18 - Step 5: Solve for x
x = 14,909,493,102.18/122,312.95 - Step 6: Final answer
x = 121,896.28
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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.