Finding the Fourth Proportional to 135,657.48, 187,214.58 and 79,065.48
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Solution
The fourth proportional to 135,657.48, 187,214.58 and 79,065.48 is: 109,114.59
Step by Step Solution
- Step 1: Write the proportion equation
135,657.48 : 187,214.58 = 79,065.48 : x - Step 2: Convert to fraction form
135,657.48/187,214.58 = 79,065.48/x - Step 3: Cross multiply
135,657.48x = 187,214.58 × 79,065.48 - Step 4: Simplify right side
135,657.48x = 14,802,210,630.70 - Step 5: Solve for x
x = 14,802,210,630.70/135,657.48 - Step 6: Final answer
x = 109,114.59
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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.