Finding the Fourth Proportional to 155,995.93, 215,256.18 and 88,013.98
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Solution
The fourth proportional to 155,995.93, 215,256.18 and 88,013.98 is: 121,449.02
Step by Step Solution
- Step 1: Write the proportion equation
155,995.93 : 215,256.18 = 88,013.98 : x - Step 2: Convert to fraction form
155,995.93/215,256.18 = 88,013.98/x - Step 3: Cross multiply
155,995.93x = 215,256.18 × 88,013.98 - Step 4: Simplify right side
155,995.93x = 18,945,553,121.40 - Step 5: Solve for x
x = 18,945,553,121.40/155,995.93 - Step 6: Final answer
x = 121,449.02
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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.