Finding the Fourth Proportional to 154,649.08, 213,518.54 and 118,774.98
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Solution
The fourth proportional to 154,649.08, 213,518.54 and 118,774.98 is: 163,988.43
Step by Step Solution
- Step 1: Write the proportion equation
154,649.08 : 213,518.54 = 118,774.98 : x - Step 2: Convert to fraction form
154,649.08/213,518.54 = 118,774.98/x - Step 3: Cross multiply
154,649.08x = 213,518.54 × 118,774.98 - Step 4: Simplify right side
154,649.08x = 25,360,660,318.13 - Step 5: Solve for x
x = 25,360,660,318.13/154,649.08 - Step 6: Final answer
x = 163,988.43
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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.