Finding the Fourth Proportional to 117,319.39, 175,985.93 and 45,272.68
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Solution
The fourth proportional to 117,319.39, 175,985.93 and 45,272.68 is: 67,911.65
Step by Step Solution
- Step 1: Write the proportion equation
117,319.39 : 175,985.93 = 45,272.68 : x - Step 2: Convert to fraction form
117,319.39/175,985.93 = 45,272.68/x - Step 3: Cross multiply
117,319.39x = 175,985.93 × 45,272.68 - Step 4: Simplify right side
117,319.39x = 7,967,353,587.10 - Step 5: Solve for x
x = 7,967,353,587.10/117,319.39 - Step 6: Final answer
x = 67,911.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.