Finding the Fourth Proportional to 98,494.60, 136,840.12 and 97,313.62
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Solution
The fourth proportional to 98,494.60, 136,840.12 and 97,313.62 is: 135,199.37
Step by Step Solution
- Step 1: Write the proportion equation
98,494.60 : 136,840.12 = 97,313.62 : x - Step 2: Convert to fraction form
98,494.60/136,840.12 = 97,313.62/x - Step 3: Cross multiply
98,494.60x = 136,840.12 × 97,313.62 - Step 4: Simplify right side
98,494.60x = 13,316,407,438.43 - Step 5: Solve for x
x = 13,316,407,438.43/98,494.60 - Step 6: Final answer
x = 135,199.37
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Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.