Finding the Fourth Proportional to 139,926.10, 193,102.06 and 76,268.02
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Solution
The fourth proportional to 139,926.10, 193,102.06 and 76,268.02 is: 105,252.07
Step by Step Solution
- Step 1: Write the proportion equation
139,926.10 : 193,102.06 = 76,268.02 : x - Step 2: Convert to fraction form
139,926.10/193,102.06 = 76,268.02/x - Step 3: Cross multiply
139,926.10x = 193,102.06 × 76,268.02 - Step 4: Simplify right side
139,926.10x = 14,727,510,808.61 - Step 5: Solve for x
x = 14,727,510,808.61/139,926.10 - Step 6: Final answer
x = 105,252.07
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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.