Finding the Fourth Proportional to 154,209.84, 212,727.48 and 93,798.96
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Solution
The fourth proportional to 154,209.84, 212,727.48 and 93,798.96 is: 129,392.63
Step by Step Solution
- Step 1: Write the proportion equation
154,209.84 : 212,727.48 = 93,798.96 : x - Step 2: Convert to fraction form
154,209.84/212,727.48 = 93,798.96/x - Step 3: Cross multiply
154,209.84x = 212,727.48 × 93,798.96 - Step 4: Simplify right side
154,209.84x = 19,953,616,387.42 - Step 5: Solve for x
x = 19,953,616,387.42/154,209.84 - Step 6: Final answer
x = 129,392.63
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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.