Finding the Fourth Proportional to 107,359.81, 160,316.75 and 87,677.41
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Solution
The fourth proportional to 107,359.81, 160,316.75 and 87,677.41 is: 130,925.69
Step by Step Solution
- Step 1: Write the proportion equation
107,359.81 : 160,316.75 = 87,677.41 : x - Step 2: Convert to fraction form
107,359.81/160,316.75 = 87,677.41/x - Step 3: Cross multiply
107,359.81x = 160,316.75 × 87,677.41 - Step 4: Simplify right side
107,359.81x = 14,056,156,981.23 - Step 5: Solve for x
x = 14,056,156,981.23/107,359.81 - Step 6: Final answer
x = 130,925.69
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.