Finding the Fourth Proportional to 114,689.79, 158,270.63 and 63,702.99
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Solution
The fourth proportional to 114,689.79, 158,270.63 and 63,702.99 is: 87,909.41
Step by Step Solution
- Step 1: Write the proportion equation
114,689.79 : 158,270.63 = 63,702.99 : x - Step 2: Convert to fraction form
114,689.79/158,270.63 = 63,702.99/x - Step 3: Cross multiply
114,689.79x = 158,270.63 × 63,702.99 - Step 4: Simplify right side
114,689.79x = 10,082,312,041.67 - Step 5: Solve for x
x = 10,082,312,041.67/114,689.79 - Step 6: Final answer
x = 87,909.41
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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.