Finding the Fourth Proportional to 155,129.80, 232,694.70 and 101,985.70
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Solution
The fourth proportional to 155,129.80, 232,694.70 and 101,985.70 is: 152,978.55
Step by Step Solution
- Step 1: Write the proportion equation
155,129.80 : 232,694.70 = 101,985.70 : x - Step 2: Convert to fraction form
155,129.80/232,694.70 = 101,985.70/x - Step 3: Cross multiply
155,129.80x = 232,694.70 × 101,985.70 - Step 4: Simplify right side
155,129.80x = 23,731,531,865.79 - Step 5: Solve for x
x = 23,731,531,865.79/155,129.80 - Step 6: Final answer
x = 152,978.55
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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.