Finding the Fourth Proportional to 153,909.80, 230,864.70 and 83,925.80
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Solution
The fourth proportional to 153,909.80, 230,864.70 and 83,925.80 is: 125,888.70
Step by Step Solution
- Step 1: Write the proportion equation
153,909.80 : 230,864.70 = 83,925.80 : x - Step 2: Convert to fraction form
153,909.80/230,864.70 = 83,925.80/x - Step 3: Cross multiply
153,909.80x = 230,864.70 × 83,925.80 - Step 4: Simplify right side
153,909.80x = 19,375,504,639.26 - Step 5: Solve for x
x = 19,375,504,639.26/153,909.80 - Step 6: Final answer
x = 125,888.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.