Finding the Fourth Proportional to 115,263.54, 159,074.15 and 69,953.09
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Solution
The fourth proportional to 115,263.54, 159,074.15 and 69,953.09 is: 96,541.61
Step by Step Solution
- Step 1: Write the proportion equation
115,263.54 : 159,074.15 = 69,953.09 : x - Step 2: Convert to fraction form
115,263.54/159,074.15 = 69,953.09/x - Step 3: Cross multiply
115,263.54x = 159,074.15 × 69,953.09 - Step 4: Simplify right side
115,263.54x = 11,127,727,186.49 - Step 5: Solve for x
x = 11,127,727,186.49/115,263.54 - Step 6: Final answer
x = 96,541.61
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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.