Finding the Fourth Proportional to 163,035.12, 224,983.80 and 99,349.68
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Solution
The fourth proportional to 163,035.12, 224,983.80 and 99,349.68 is: 137,099.72
Step by Step Solution
- Step 1: Write the proportion equation
163,035.12 : 224,983.80 = 99,349.68 : x - Step 2: Convert to fraction form
163,035.12/224,983.80 = 99,349.68/x - Step 3: Cross multiply
163,035.12x = 224,983.80 × 99,349.68 - Step 4: Simplify right side
163,035.12x = 22,352,068,535.18 - Step 5: Solve for x
x = 22,352,068,535.18/163,035.12 - Step 6: Final answer
x = 137,099.72
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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.