Finding the Fourth Proportional to 157,886.08, 217,897.92 and 86,276.96
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Solution
The fourth proportional to 157,886.08, 217,897.92 and 86,276.96 is: 119,070.47
Step by Step Solution
- Step 1: Write the proportion equation
157,886.08 : 217,897.92 = 86,276.96 : x - Step 2: Convert to fraction form
157,886.08/217,897.92 = 86,276.96/x - Step 3: Cross multiply
157,886.08x = 217,897.92 × 86,276.96 - Step 4: Simplify right side
157,886.08x = 18,799,570,127.92 - Step 5: Solve for x
x = 18,799,570,127.92/157,886.08 - Step 6: Final answer
x = 119,070.47
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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.