Finding the Fourth Proportional to 148,811.88, 205,364.01 and 85,170.18
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Solution
The fourth proportional to 148,811.88, 205,364.01 and 85,170.18 is: 117,536.92
Step by Step Solution
- Step 1: Write the proportion equation
148,811.88 : 205,364.01 = 85,170.18 : x - Step 2: Convert to fraction form
148,811.88/205,364.01 = 85,170.18/x - Step 3: Cross multiply
148,811.88x = 205,364.01 × 85,170.18 - Step 4: Simplify right side
148,811.88x = 17,490,889,697.22 - Step 5: Solve for x
x = 17,490,889,697.22/148,811.88 - Step 6: Final answer
x = 117,536.92
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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.