Finding the Fourth Proportional to 121,726.80, 167,781.78 and 97,582.32
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Solution
The fourth proportional to 121,726.80, 167,781.78 and 97,582.32 is: 134,502.31
Step by Step Solution
- Step 1: Write the proportion equation
121,726.80 : 167,781.78 = 97,582.32 : x - Step 2: Convert to fraction form
121,726.80/167,781.78 = 97,582.32/x - Step 3: Cross multiply
121,726.80x = 167,781.78 × 97,582.32 - Step 4: Simplify right side
121,726.80x = 16,372,535,346.13 - Step 5: Solve for x
x = 16,372,535,346.13/121,726.80 - Step 6: Final answer
x = 134,502.31
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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.