Finding the Fourth Proportional to 153,903.48, 212,475.14 and 117,317.70
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Solution
The fourth proportional to 153,903.48, 212,475.14 and 117,317.70 is: 161,965.76
Step by Step Solution
- Step 1: Write the proportion equation
153,903.48 : 212,475.14 = 117,317.70 : x - Step 2: Convert to fraction form
153,903.48/212,475.14 = 117,317.70/x - Step 3: Cross multiply
153,903.48x = 212,475.14 × 117,317.70 - Step 4: Simplify right side
153,903.48x = 24,927,094,731.98 - Step 5: Solve for x
x = 24,927,094,731.98/153,903.48 - Step 6: Final answer
x = 161,965.76
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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.