Finding the Fourth Proportional to 153,176.05, 211,148.67 and 107,730.19
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Solution
The fourth proportional to 153,176.05, 211,148.67 and 107,730.19 is: 148,502.89
Step by Step Solution
- Step 1: Write the proportion equation
153,176.05 : 211,148.67 = 107,730.19 : x - Step 2: Convert to fraction form
153,176.05/211,148.67 = 107,730.19/x - Step 3: Cross multiply
153,176.05x = 211,148.67 × 107,730.19 - Step 4: Simplify right side
153,176.05x = 22,747,086,337.35 - Step 5: Solve for x
x = 22,747,086,337.35/153,176.05 - Step 6: Final answer
x = 148,502.89
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1.5x scale
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.