Finding the Fourth Proportional to 163,631.70, 245,101.95 and 135,983.70
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Solution
The fourth proportional to 163,631.70, 245,101.95 and 135,983.70 is: 203,688.34
Step by Step Solution
- Step 1: Write the proportion equation
163,631.70 : 245,101.95 = 135,983.70 : x - Step 2: Convert to fraction form
163,631.70/245,101.95 = 135,983.70/x - Step 3: Cross multiply
163,631.70x = 245,101.95 × 135,983.70 - Step 4: Simplify right side
163,631.70x = 33,329,870,038.22 - Step 5: Solve for x
x = 33,329,870,038.22/163,631.70 - Step 6: Final answer
x = 203,688.34
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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.