Finding the Fourth Proportional to 111,501.35, 153,924.21 and 74,770.08
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Solution
The fourth proportional to 111,501.35, 153,924.21 and 74,770.08 is: 103,217.82
Step by Step Solution
- Step 1: Write the proportion equation
111,501.35 : 153,924.21 = 74,770.08 : x - Step 2: Convert to fraction form
111,501.35/153,924.21 = 74,770.08/x - Step 3: Cross multiply
111,501.35x = 153,924.21 × 74,770.08 - Step 4: Simplify right side
111,501.35x = 11,508,925,495.64 - Step 5: Solve for x
x = 11,508,925,495.64/111,501.35 - Step 6: Final answer
x = 103,217.82
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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.