Finding the Fourth Proportional to 157,870.24, 217,860.84 and 89,883.70
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Solution
The fourth proportional to 157,870.24, 217,860.84 and 89,883.70 is: 124,039.45
Step by Step Solution
- Step 1: Write the proportion equation
157,870.24 : 217,860.84 = 89,883.70 : x - Step 2: Convert to fraction form
157,870.24/217,860.84 = 89,883.70/x - Step 3: Cross multiply
157,870.24x = 217,860.84 × 89,883.70 - Step 4: Simplify right side
157,870.24x = 19,582,138,384.31 - Step 5: Solve for x
x = 19,582,138,384.31/157,870.24 - Step 6: Final answer
x = 124,039.45
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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.