Finding the Fourth Proportional to 153,115.98, 211,307.08 and 85,139.92
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Solution
The fourth proportional to 153,115.98, 211,307.08 and 85,139.92 is: 117,497.00
Step by Step Solution
- Step 1: Write the proportion equation
153,115.98 : 211,307.08 = 85,139.92 : x - Step 2: Convert to fraction form
153,115.98/211,307.08 = 85,139.92/x - Step 3: Cross multiply
153,115.98x = 211,307.08 × 85,139.92 - Step 4: Simplify right side
153,115.98x = 17,990,667,886.63 - Step 5: Solve for x
x = 17,990,667,886.63/153,115.98 - Step 6: Final answer
x = 117,497.00
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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.