Finding the Fourth Proportional to 115,837.96, 159,773.95 and 106,308.63
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Solution
The fourth proportional to 115,837.96, 159,773.95 and 106,308.63 is: 146,630.26
Step by Step Solution
- Step 1: Write the proportion equation
115,837.96 : 159,773.95 = 106,308.63 : x - Step 2: Convert to fraction form
115,837.96/159,773.95 = 106,308.63/x - Step 3: Cross multiply
115,837.96x = 159,773.95 × 106,308.63 - Step 4: Simplify right side
115,837.96x = 16,985,349,734.19 - Step 5: Solve for x
x = 16,985,349,734.19/115,837.96 - Step 6: Final answer
x = 146,630.26
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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.