Finding the Fourth Proportional to 170,931.49, 235,827.69 and 99,252.56
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Solution
The fourth proportional to 170,931.49, 235,827.69 and 99,252.56 is: 136,934.99
Step by Step Solution
- Step 1: Write the proportion equation
170,931.49 : 235,827.69 = 99,252.56 : x - Step 2: Convert to fraction form
170,931.49/235,827.69 = 99,252.56/x - Step 3: Cross multiply
170,931.49x = 235,827.69 × 99,252.56 - Step 4: Simplify right side
170,931.49x = 23,406,501,951.39 - Step 5: Solve for x
x = 23,406,501,951.39/170,931.49 - Step 6: Final answer
x = 136,934.99
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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.