Finding the Fourth Proportional to 135,637.62, 187,176.74 and 75,207.71
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Solution
The fourth proportional to 135,637.62, 187,176.74 and 75,207.71 is: 103,784.87
Step by Step Solution
- Step 1: Write the proportion equation
135,637.62 : 187,176.74 = 75,207.71 : x - Step 2: Convert to fraction form
135,637.62/187,176.74 = 75,207.71/x - Step 3: Cross multiply
135,637.62x = 187,176.74 × 75,207.71 - Step 4: Simplify right side
135,637.62x = 14,077,132,668.74 - Step 5: Solve for x
x = 14,077,132,668.74/135,637.62 - Step 6: Final answer
x = 103,784.87
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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.