Finding the Fourth Proportional to 143,117.66, 197,502.81 and 79,455.62
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Solution
The fourth proportional to 143,117.66, 197,502.81 and 79,455.62 is: 109,649.00
Step by Step Solution
- Step 1: Write the proportion equation
143,117.66 : 197,502.81 = 79,455.62 : x - Step 2: Convert to fraction form
143,117.66/197,502.81 = 79,455.62/x - Step 3: Cross multiply
143,117.66x = 197,502.81 × 79,455.62 - Step 4: Simplify right side
143,117.66x = 15,692,708,220.29 - Step 5: Solve for x
x = 15,692,708,220.29/143,117.66 - Step 6: Final answer
x = 109,649.00
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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.