Finding the Fourth Proportional to 148,163.10, 222,244.65 and 84,918.30
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Solution
The fourth proportional to 148,163.10, 222,244.65 and 84,918.30 is: 127,377.45
Step by Step Solution
- Step 1: Write the proportion equation
148,163.10 : 222,244.65 = 84,918.30 : x - Step 2: Convert to fraction form
148,163.10/222,244.65 = 84,918.30/x - Step 3: Cross multiply
148,163.10x = 222,244.65 × 84,918.30 - Step 4: Simplify right side
148,163.10x = 18,872,637,862.10 - Step 5: Solve for x
x = 18,872,637,862.10/148,163.10 - Step 6: Final answer
x = 127,377.45
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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.