Finding the Fourth Proportional to 152,178.68, 210,006.42 and 85,110.68
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Solution
The fourth proportional to 152,178.68, 210,006.42 and 85,110.68 is: 117,452.65
Step by Step Solution
- Step 1: Write the proportion equation
152,178.68 : 210,006.42 = 85,110.68 : x - Step 2: Convert to fraction form
152,178.68/210,006.42 = 85,110.68/x - Step 3: Cross multiply
152,178.68x = 210,006.42 × 85,110.68 - Step 4: Simplify right side
152,178.68x = 17,873,789,210.57 - Step 5: Solve for x
x = 17,873,789,210.57/152,178.68 - Step 6: Final answer
x = 117,452.65
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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.