Finding the Fourth Proportional to 97,690.93, 146,533.66 and 31,135.05
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Solution
The fourth proportional to 97,690.93, 146,533.66 and 31,135.05 is: 46,701.70
Step by Step Solution
- Step 1: Write the proportion equation
97,690.93 : 146,533.66 = 31,135.05 : x - Step 2: Convert to fraction form
97,690.93/146,533.66 = 31,135.05/x - Step 3: Cross multiply
97,690.93x = 146,533.66 × 31,135.05 - Step 4: Simplify right side
97,690.93x = 4,562,332,752.95 - Step 5: Solve for x
x = 4,562,332,752.95/97,690.93 - Step 6: Final answer
x = 46,701.70
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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.