Finding the Fourth Proportional to 106,663.80, 147,195.12 and 58,920.48
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Solution
The fourth proportional to 106,663.80, 147,195.12 and 58,920.48 is: 81,309.75
Step by Step Solution
- Step 1: Write the proportion equation
106,663.80 : 147,195.12 = 58,920.48 : x - Step 2: Convert to fraction form
106,663.80/147,195.12 = 58,920.48/x - Step 3: Cross multiply
106,663.80x = 147,195.12 × 58,920.48 - Step 4: Simplify right side
106,663.80x = 8,672,807,124.06 - Step 5: Solve for x
x = 8,672,807,124.06/106,663.80 - Step 6: Final answer
x = 81,309.75
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1.5x scale
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.