Finding the Fourth Proportional to 135,479.76, 203,345.74 and 68,969.68
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Solution
The fourth proportional to 135,479.76, 203,345.74 and 68,969.68 is: 103,518.71
Step by Step Solution
- Step 1: Write the proportion equation
135,479.76 : 203,345.74 = 68,969.68 : x - Step 2: Convert to fraction form
135,479.76/203,345.74 = 68,969.68/x - Step 3: Cross multiply
135,479.76x = 203,345.74 × 68,969.68 - Step 4: Simplify right side
135,479.76x = 14,024,690,617.16 - Step 5: Solve for x
x = 14,024,690,617.16/135,479.76 - Step 6: Final answer
x = 103,518.71
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.