Finding the Fourth Proportional to 88,920.18, 133,207.54 and 79,455.94
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Solution
The fourth proportional to 88,920.18, 133,207.54 and 79,455.94 is: 119,029.56
Step by Step Solution
- Step 1: Write the proportion equation
88,920.18 : 133,207.54 = 79,455.94 : x - Step 2: Convert to fraction form
88,920.18/133,207.54 = 79,455.94/x - Step 3: Cross multiply
88,920.18x = 133,207.54 × 79,455.94 - Step 4: Simplify right side
88,920.18x = 10,584,129,774.13 - Step 5: Solve for x
x = 10,584,129,774.13/88,920.18 - Step 6: Final answer
x = 119,029.56
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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.