Finding the Fourth Proportional to 115,927.44, 159,985.86 and 64,937.19
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Solution
The fourth proportional to 115,927.44, 159,985.86 and 64,937.19 is: 89,616.68
Step by Step Solution
- Step 1: Write the proportion equation
115,927.44 : 159,985.86 = 64,937.19 : x - Step 2: Convert to fraction form
115,927.44/159,985.86 = 64,937.19/x - Step 3: Cross multiply
115,927.44x = 159,985.86 × 64,937.19 - Step 4: Simplify right side
115,927.44x = 10,389,032,188.13 - Step 5: Solve for x
x = 10,389,032,188.13/115,927.44 - Step 6: Final answer
x = 89,616.68
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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.