Finding the Fourth Proportional to 88,179.18, 121,722.16 and 61,337.26
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Solution
The fourth proportional to 88,179.18, 121,722.16 and 61,337.26 is: 84,669.69
Step by Step Solution
- Step 1: Write the proportion equation
88,179.18 : 121,722.16 = 61,337.26 : x - Step 2: Convert to fraction form
88,179.18/121,722.16 = 61,337.26/x - Step 3: Cross multiply
88,179.18x = 121,722.16 × 61,337.26 - Step 4: Simplify right side
88,179.18x = 7,466,103,775.68 - Step 5: Solve for x
x = 7,466,103,775.68/88,179.18 - Step 6: Final answer
x = 84,669.69
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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.