Finding the Fourth Proportional to 135,823.26, 187,444.58 and 78,465.00
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Solution
The fourth proportional to 135,823.26, 187,444.58 and 78,465.00 is: 108,286.59
Step by Step Solution
- Step 1: Write the proportion equation
135,823.26 : 187,444.58 = 78,465.00 : x - Step 2: Convert to fraction form
135,823.26/187,444.58 = 78,465.00/x - Step 3: Cross multiply
135,823.26x = 187,444.58 × 78,465.00 - Step 4: Simplify right side
135,823.26x = 14,707,838,140.09 - Step 5: Solve for x
x = 14,707,838,140.09/135,823.26 - Step 6: Final answer
x = 108,286.59
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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.