Finding the Fourth Proportional to 113,215.80, 169,823.70 and 97,663.80
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Solution
The fourth proportional to 113,215.80, 169,823.70 and 97,663.80 is: 146,495.70
Step by Step Solution
- Step 1: Write the proportion equation
113,215.80 : 169,823.70 = 97,663.80 : x - Step 2: Convert to fraction form
113,215.80/169,823.70 = 97,663.80/x - Step 3: Cross multiply
113,215.80x = 169,823.70 × 97,663.80 - Step 4: Simplify right side
113,215.80x = 16,585,627,872.06 - Step 5: Solve for x
x = 16,585,627,872.06/113,215.80 - Step 6: Final answer
x = 146,495.70
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1.5x scale
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.