Finding the Fourth Proportional to 98,618.70, 147,949.65 and 48,722.70
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Solution
The fourth proportional to 98,618.70, 147,949.65 and 48,722.70 is: 73,094.72
Step by Step Solution
- Step 1: Write the proportion equation
98,618.70 : 147,949.65 = 48,722.70 : x - Step 2: Convert to fraction form
98,618.70/147,949.65 = 48,722.70/x - Step 3: Cross multiply
98,618.70x = 147,949.65 × 48,722.70 - Step 4: Simplify right side
98,618.70x = 7,208,506,412.06 - Step 5: Solve for x
x = 7,208,506,412.06/98,618.70 - Step 6: Final answer
x = 73,094.72
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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.