Finding the Fourth Proportional to 147,403.98, 203,391.99 and 86,970.06
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Solution
The fourth proportional to 147,403.98, 203,391.99 and 86,970.06 is: 120,003.64
Step by Step Solution
- Step 1: Write the proportion equation
147,403.98 : 203,391.99 = 86,970.06 : x - Step 2: Convert to fraction form
147,403.98/203,391.99 = 86,970.06/x - Step 3: Cross multiply
147,403.98x = 203,391.99 × 86,970.06 - Step 4: Simplify right side
147,403.98x = 17,689,013,573.82 - Step 5: Solve for x
x = 17,689,013,573.82/147,403.98 - Step 6: Final answer
x = 120,003.64
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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.