Finding the Fourth Proportional to 135,918.96, 187,567.05 and 74,666.17
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Solution
The fourth proportional to 135,918.96, 187,567.05 and 74,666.17 is: 103,038.70
Step by Step Solution
- Step 1: Write the proportion equation
135,918.96 : 187,567.05 = 74,666.17 : x - Step 2: Convert to fraction form
135,918.96/187,567.05 = 74,666.17/x - Step 3: Cross multiply
135,918.96x = 187,567.05 × 74,666.17 - Step 4: Simplify right side
135,918.96x = 14,004,913,241.70 - Step 5: Solve for x
x = 14,004,913,241.70/135,918.96 - Step 6: Final answer
x = 103,038.70
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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.