Finding the Fourth Proportional to 98,714.16, 136,225.13 and 53,392.19
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Solution
The fourth proportional to 98,714.16, 136,225.13 and 53,392.19 is: 73,680.99
Step by Step Solution
- Step 1: Write the proportion equation
98,714.16 : 136,225.13 = 53,392.19 : x - Step 2: Convert to fraction form
98,714.16/136,225.13 = 53,392.19/x - Step 3: Cross multiply
98,714.16x = 136,225.13 × 53,392.19 - Step 4: Simplify right side
98,714.16x = 7,273,357,075.65 - Step 5: Solve for x
x = 7,273,357,075.65/98,714.16 - Step 6: Final answer
x = 73,680.99
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1.5x scale
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.