Finding the Fourth Proportional to 115,259.49, 159,058.60 and 64,272.06
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Solution
The fourth proportional to 115,259.49, 159,058.60 and 64,272.06 is: 88,695.72
Step by Step Solution
- Step 1: Write the proportion equation
115,259.49 : 159,058.60 = 64,272.06 : x - Step 2: Convert to fraction form
115,259.49/159,058.60 = 64,272.06/x - Step 3: Cross multiply
115,259.49x = 159,058.60 × 64,272.06 - Step 4: Simplify right side
115,259.49x = 10,223,023,882.72 - Step 5: Solve for x
x = 10,223,023,882.72/115,259.49 - Step 6: Final answer
x = 88,695.72
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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.