Finding the Fourth Proportional to 124,008.31, 171,130.75 and 68,817.08
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Solution
The fourth proportional to 124,008.31, 171,130.75 and 68,817.08 is: 94,967.17
Step by Step Solution
- Step 1: Write the proportion equation
124,008.31 : 171,130.75 = 68,817.08 : x - Step 2: Convert to fraction form
124,008.31/171,130.75 = 68,817.08/x - Step 3: Cross multiply
124,008.31x = 171,130.75 × 68,817.08 - Step 4: Simplify right side
124,008.31x = 11,776,717,999.93 - Step 5: Solve for x
x = 11,776,717,999.93/124,008.31 - Step 6: Final answer
x = 94,967.17
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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.