Finding the Fourth Proportional to 150,641.98, 207,876.96 and 86,118.18
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Solution
The fourth proportional to 150,641.98, 207,876.96 and 86,118.18 is: 118,837.96
Step by Step Solution
- Step 1: Write the proportion equation
150,641.98 : 207,876.96 = 86,118.18 : x - Step 2: Convert to fraction form
150,641.98/207,876.96 = 86,118.18/x - Step 3: Cross multiply
150,641.98x = 207,876.96 × 86,118.18 - Step 4: Simplify right side
150,641.98x = 17,901,985,459.13 - Step 5: Solve for x
x = 17,901,985,459.13/150,641.98 - Step 6: Final answer
x = 118,837.96
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1.5x scale
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.