Finding the Fourth Proportional to 134,904.57, 186,180.98 and 100,854.09
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Solution
The fourth proportional to 134,904.57, 186,180.98 and 100,854.09 is: 139,188.12
Step by Step Solution
- Step 1: Write the proportion equation
134,904.57 : 186,180.98 = 100,854.09 : x - Step 2: Convert to fraction form
134,904.57/186,180.98 = 100,854.09/x - Step 3: Cross multiply
134,904.57x = 186,180.98 × 100,854.09 - Step 4: Simplify right side
134,904.57x = 18,777,112,808.94 - Step 5: Solve for x
x = 18,777,112,808.94/134,904.57 - Step 6: Final answer
x = 139,188.12
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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.