Finding the Fourth Proportional to 138,927.53, 208,169.86 and 88,966.53
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Solution
The fourth proportional to 138,927.53, 208,169.86 and 88,966.53 is: 133,307.99
Step by Step Solution
- Step 1: Write the proportion equation
138,927.53 : 208,169.86 = 88,966.53 : x - Step 2: Convert to fraction form
138,927.53/208,169.86 = 88,966.53/x - Step 3: Cross multiply
138,927.53x = 208,169.86 × 88,966.53 - Step 4: Simplify right side
138,927.53x = 18,520,150,094.79 - Step 5: Solve for x
x = 18,520,150,094.79/138,927.53 - Step 6: Final answer
x = 133,307.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.