Finding the Fourth Proportional to 125,417.12, 173,064.17 and 74,421.07
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Solution
The fourth proportional to 125,417.12, 173,064.17 and 74,421.07 is: 102,694.28
Step by Step Solution
- Step 1: Write the proportion equation
125,417.12 : 173,064.17 = 74,421.07 : x - Step 2: Convert to fraction form
125,417.12/173,064.17 = 74,421.07/x - Step 3: Cross multiply
125,417.12x = 173,064.17 × 74,421.07 - Step 4: Simplify right side
125,417.12x = 12,879,620,710.06 - Step 5: Solve for x
x = 12,879,620,710.06/125,417.12 - Step 6: Final answer
x = 102,694.28
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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.