Finding the Fourth Proportional to 107,782.92, 148,774.95 and 69,543.63
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Solution
The fourth proportional to 107,782.92, 148,774.95 and 69,543.63 is: 95,992.48
Step by Step Solution
- Step 1: Write the proportion equation
107,782.92 : 148,774.95 = 69,543.63 : x - Step 2: Convert to fraction form
107,782.92/148,774.95 = 69,543.63/x - Step 3: Cross multiply
107,782.92x = 148,774.95 × 69,543.63 - Step 4: Simplify right side
107,782.92x = 10,346,350,076.07 - Step 5: Solve for x
x = 10,346,350,076.07/107,782.92 - Step 6: Final answer
x = 95,992.48
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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.