Finding the Fourth Proportional to 124,151.99, 171,317.88 and 69,691.70
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Solution
The fourth proportional to 124,151.99, 171,317.88 and 69,691.70 is: 96,167.88
Step by Step Solution
- Step 1: Write the proportion equation
124,151.99 : 171,317.88 = 69,691.70 : x - Step 2: Convert to fraction form
124,151.99/171,317.88 = 69,691.70/x - Step 3: Cross multiply
124,151.99x = 171,317.88 × 69,691.70 - Step 4: Simplify right side
124,151.99x = 11,939,433,441.01 - Step 5: Solve for x
x = 11,939,433,441.01/124,151.99 - Step 6: Final answer
x = 96,167.88
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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.