Finding the Fourth Proportional to 155,097.06, 214,032.60 and 87,115.08
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Solution
The fourth proportional to 155,097.06, 214,032.60 and 87,115.08 is: 120,218.06
Step by Step Solution
- Step 1: Write the proportion equation
155,097.06 : 214,032.60 = 87,115.08 : x - Step 2: Convert to fraction form
155,097.06/214,032.60 = 87,115.08/x - Step 3: Cross multiply
155,097.06x = 214,032.60 × 87,115.08 - Step 4: Simplify right side
155,097.06x = 18,645,467,071.61 - Step 5: Solve for x
x = 18,645,467,071.61/155,097.06 - Step 6: Final answer
x = 120,218.06
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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.