Finding the Fourth Proportional to 135,917.84, 187,567.80 and 79,318.16
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Solution
The fourth proportional to 135,917.84, 187,567.80 and 79,318.16 is: 109,459.75
Step by Step Solution
- Step 1: Write the proportion equation
135,917.84 : 187,567.80 = 79,318.16 : x - Step 2: Convert to fraction form
135,917.84/187,567.80 = 79,318.16/x - Step 3: Cross multiply
135,917.84x = 187,567.80 × 79,318.16 - Step 4: Simplify right side
135,917.84x = 14,877,532,771.25 - Step 5: Solve for x
x = 14,877,532,771.25/135,917.84 - Step 6: Final answer
x = 109,459.75
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.