Finding the Fourth Proportional to 99,970.06, 149,881.02 and 60,517.84
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Solution
The fourth proportional to 99,970.06, 149,881.02 and 60,517.84 is: 90,731.92
Step by Step Solution
- Step 1: Write the proportion equation
99,970.06 : 149,881.02 = 60,517.84 : x - Step 2: Convert to fraction form
99,970.06/149,881.02 = 60,517.84/x - Step 3: Cross multiply
99,970.06x = 149,881.02 × 60,517.84 - Step 4: Simplify right side
99,970.06x = 9,070,475,587.40 - Step 5: Solve for x
x = 9,070,475,587.40/99,970.06 - Step 6: Final answer
x = 90,731.92
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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.