Finding the Fourth Proportional to 152,953.84, 211,069.12 and 84,975.20
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Solution
The fourth proportional to 152,953.84, 211,069.12 and 84,975.20 is: 117,261.79
Step by Step Solution
- Step 1: Write the proportion equation
152,953.84 : 211,069.12 = 84,975.20 : x - Step 2: Convert to fraction form
152,953.84/211,069.12 = 84,975.20/x - Step 3: Cross multiply
152,953.84x = 211,069.12 × 84,975.20 - Step 4: Simplify right side
152,953.84x = 17,935,640,685.82 - Step 5: Solve for x
x = 17,935,640,685.82/152,953.84 - Step 6: Final answer
x = 117,261.79
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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.