Finding the Fourth Proportional to 117,764.01, 162,539.46 and 72,442.08
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Solution
The fourth proportional to 117,764.01, 162,539.46 and 72,442.08 is: 99,985.53
Step by Step Solution
- Step 1: Write the proportion equation
117,764.01 : 162,539.46 = 72,442.08 : x - Step 2: Convert to fraction form
117,764.01/162,539.46 = 72,442.08/x - Step 3: Cross multiply
117,764.01x = 162,539.46 × 72,442.08 - Step 4: Simplify right side
117,764.01x = 11,774,696,564.48 - Step 5: Solve for x
x = 11,774,696,564.48/117,764.01 - Step 6: Final answer
x = 99,985.53
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1.5x scale
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.