Finding the Fourth Proportional to 115,750.38, 159,681.54 and 74,927.70
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Solution
The fourth proportional to 115,750.38, 159,681.54 and 74,927.70 is: 103,365.28
Step by Step Solution
- Step 1: Write the proportion equation
115,750.38 : 159,681.54 = 74,927.70 : x - Step 2: Convert to fraction form
115,750.38/159,681.54 = 74,927.70/x - Step 3: Cross multiply
115,750.38x = 159,681.54 × 74,927.70 - Step 4: Simplify right side
115,750.38x = 11,964,570,524.66 - Step 5: Solve for x
x = 11,964,570,524.66/115,750.38 - Step 6: Final answer
x = 103,365.28
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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.