Finding the Fourth Proportional to 153,470.08, 211,789.09 and 88,951.76
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Solution
The fourth proportional to 153,470.08, 211,789.09 and 88,951.76 is: 122,753.65
Step by Step Solution
- Step 1: Write the proportion equation
153,470.08 : 211,789.09 = 88,951.76 : x - Step 2: Convert to fraction form
153,470.08/211,789.09 = 88,951.76/x - Step 3: Cross multiply
153,470.08x = 211,789.09 × 88,951.76 - Step 4: Simplify right side
153,470.08x = 18,839,012,304.30 - Step 5: Solve for x
x = 18,839,012,304.30/153,470.08 - Step 6: Final answer
x = 122,753.65
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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.