Finding the Fourth Proportional to 106,679.31, 147,216.99 and 58,932.66
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Solution
The fourth proportional to 106,679.31, 147,216.99 and 58,932.66 is: 81,326.82
Step by Step Solution
- Step 1: Write the proportion equation
106,679.31 : 147,216.99 = 58,932.66 : x - Step 2: Convert to fraction form
106,679.31/147,216.99 = 58,932.66/x - Step 3: Cross multiply
106,679.31x = 147,216.99 × 58,932.66 - Step 4: Simplify right side
106,679.31x = 8,675,888,817.89 - Step 5: Solve for x
x = 8,675,888,817.89/106,679.31 - Step 6: Final answer
x = 81,326.82
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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.