Finding the Fourth Proportional to 97,656.85, 134,765.80 and 55,215.55
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Solution
The fourth proportional to 97,656.85, 134,765.80 and 55,215.55 is: 76,197.09
Step by Step Solution
- Step 1: Write the proportion equation
97,656.85 : 134,765.80 = 55,215.55 : x - Step 2: Convert to fraction form
97,656.85/134,765.80 = 55,215.55/x - Step 3: Cross multiply
97,656.85x = 134,765.80 × 55,215.55 - Step 4: Simplify right side
97,656.85x = 7,441,167,768.19 - Step 5: Solve for x
x = 7,441,167,768.19/97,656.85 - Step 6: Final answer
x = 76,197.09
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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.