Finding the Fourth Proportional to 135,985.98, 187,509.36 and 92,972.49
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Solution
The fourth proportional to 135,985.98, 187,509.36 and 92,972.49 is: 128,198.60
Step by Step Solution
- Step 1: Write the proportion equation
135,985.98 : 187,509.36 = 92,972.49 : x - Step 2: Convert to fraction form
135,985.98/187,509.36 = 92,972.49/x - Step 3: Cross multiply
135,985.98x = 187,509.36 × 92,972.49 - Step 4: Simplify right side
135,985.98x = 17,433,212,097.51 - Step 5: Solve for x
x = 17,433,212,097.51/135,985.98 - Step 6: Final answer
x = 128,198.60
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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.