Finding the Fourth Proportional to 153,726.08, 212,142.08 and 83,070.08
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Solution
The fourth proportional to 153,726.08, 212,142.08 and 83,070.08 is: 114,636.76
Step by Step Solution
- Step 1: Write the proportion equation
153,726.08 : 212,142.08 = 83,070.08 : x - Step 2: Convert to fraction form
153,726.08/212,142.08 = 83,070.08/x - Step 3: Cross multiply
153,726.08x = 212,142.08 × 83,070.08 - Step 4: Simplify right side
153,726.08x = 17,622,659,556.97 - Step 5: Solve for x
x = 17,622,659,556.97/153,726.08 - Step 6: Final answer
x = 114,636.76
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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.