Finding the Fourth Proportional to 94,931.39, 142,137.70 and 68,303.99
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Solution
The fourth proportional to 94,931.39, 142,137.70 and 68,303.99 is: 102,269.35
Step by Step Solution
- Step 1: Write the proportion equation
94,931.39 : 142,137.70 = 68,303.99 : x - Step 2: Convert to fraction form
94,931.39/142,137.70 = 68,303.99/x - Step 3: Cross multiply
94,931.39x = 142,137.70 × 68,303.99 - Step 4: Simplify right side
94,931.39x = 9,708,572,224.01 - Step 5: Solve for x
x = 9,708,572,224.01/94,931.39 - Step 6: Final answer
x = 102,269.35
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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.