Finding the Fourth Proportional to 131,691.84, 197,547.84 and 56,813.76
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Solution
The fourth proportional to 131,691.84, 197,547.84 and 56,813.76 is: 85,224.99
Step by Step Solution
- Step 1: Write the proportion equation
131,691.84 : 197,547.84 = 56,813.76 : x - Step 2: Convert to fraction form
131,691.84/197,547.84 = 56,813.76/x - Step 3: Cross multiply
131,691.84x = 197,547.84 × 56,813.76 - Step 4: Simplify right side
131,691.84x = 11,223,435,570.28 - Step 5: Solve for x
x = 11,223,435,570.28/131,691.84 - Step 6: Final answer
x = 85,224.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.