Finding the Fourth Proportional to 153,903.98, 212,475.84 and 117,318.26
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Solution
The fourth proportional to 153,903.98, 212,475.84 and 117,318.26 is: 161,966.54
Step by Step Solution
- Step 1: Write the proportion equation
153,903.98 : 212,475.84 = 117,318.26 : x - Step 2: Convert to fraction form
153,903.98/212,475.84 = 117,318.26/x - Step 3: Cross multiply
153,903.98x = 212,475.84 × 117,318.26 - Step 4: Simplify right side
153,903.98x = 24,927,295,840.84 - Step 5: Solve for x
x = 24,927,295,840.84/153,903.98 - Step 6: Final answer
x = 161,966.54
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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.