Finding the Fourth Proportional to 135,350.04, 186,781.44 and 74,920.80
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Solution
The fourth proportional to 135,350.04, 186,781.44 and 74,920.80 is: 103,389.81
Step by Step Solution
- Step 1: Write the proportion equation
135,350.04 : 186,781.44 = 74,920.80 : x - Step 2: Convert to fraction form
135,350.04/186,781.44 = 74,920.80/x - Step 3: Cross multiply
135,350.04x = 186,781.44 × 74,920.80 - Step 4: Simplify right side
135,350.04x = 13,993,814,909.95 - Step 5: Solve for x
x = 13,993,814,909.95/135,350.04 - Step 6: Final answer
x = 103,389.81
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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.