Finding the Fourth Proportional to 152,143.65, 209,887.50 and 98,445.99
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Solution
The fourth proportional to 152,143.65, 209,887.50 and 98,445.99 is: 135,809.70
Step by Step Solution
- Step 1: Write the proportion equation
152,143.65 : 209,887.50 = 98,445.99 : x - Step 2: Convert to fraction form
152,143.65/209,887.50 = 98,445.99/x - Step 3: Cross multiply
152,143.65x = 209,887.50 × 98,445.99 - Step 4: Simplify right side
152,143.65x = 20,662,582,726.13 - Step 5: Solve for x
x = 20,662,582,726.13/152,143.65 - Step 6: Final answer
x = 135,809.70
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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.