Finding the Fourth Proportional to 135,720.06, 187,293.47 and 75,299.91
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Solution
The fourth proportional to 135,720.06, 187,293.47 and 75,299.91 is: 103,913.75
Step by Step Solution
- Step 1: Write the proportion equation
135,720.06 : 187,293.47 = 75,299.91 : x - Step 2: Convert to fraction form
135,720.06/187,293.47 = 75,299.91/x - Step 3: Cross multiply
135,720.06x = 187,293.47 × 75,299.91 - Step 4: Simplify right side
135,720.06x = 14,103,181,058.09 - Step 5: Solve for x
x = 14,103,181,058.09/135,720.06 - Step 6: Final answer
x = 103,913.75
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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.