Finding the Fourth Proportional to 122,135.04, 168,544.80 and 68,419.08
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Solution
The fourth proportional to 122,135.04, 168,544.80 and 68,419.08 is: 94,417.46
Step by Step Solution
- Step 1: Write the proportion equation
122,135.04 : 168,544.80 = 68,419.08 : x - Step 2: Convert to fraction form
122,135.04/168,544.80 = 68,419.08/x - Step 3: Cross multiply
122,135.04x = 168,544.80 × 68,419.08 - Step 4: Simplify right side
122,135.04x = 11,531,680,154.78 - Step 5: Solve for x
x = 11,531,680,154.78/122,135.04 - Step 6: Final answer
x = 94,417.46
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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.