Finding the Fourth Proportional to 97,390.08, 134,489.25 and 71,670.96
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Solution
The fourth proportional to 97,390.08, 134,489.25 and 71,670.96 is: 98,972.85
Step by Step Solution
- Step 1: Write the proportion equation
97,390.08 : 134,489.25 = 71,670.96 : x - Step 2: Convert to fraction form
97,390.08/134,489.25 = 71,670.96/x - Step 3: Cross multiply
97,390.08x = 134,489.25 × 71,670.96 - Step 4: Simplify right side
97,390.08x = 9,638,973,657.18 - Step 5: Solve for x
x = 9,638,973,657.18/97,390.08 - Step 6: Final answer
x = 98,972.85
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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.