Finding the Fourth Proportional to 153,341.99, 211,597.94 and 89,668.70
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Solution
The fourth proportional to 153,341.99, 211,597.94 and 89,668.70 is: 123,734.61
Step by Step Solution
- Step 1: Write the proportion equation
153,341.99 : 211,597.94 = 89,668.70 : x - Step 2: Convert to fraction form
153,341.99/211,597.94 = 89,668.70/x - Step 3: Cross multiply
153,341.99x = 211,597.94 × 89,668.70 - Step 4: Simplify right side
153,341.99x = 18,973,711,368.66 - Step 5: Solve for x
x = 18,973,711,368.66/153,341.99 - Step 6: Final answer
x = 123,734.61
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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.