Finding the Fourth Proportional to 159,350.14, 219,898.94 and 87,730.70
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Solution
The fourth proportional to 159,350.14, 219,898.94 and 87,730.70 is: 121,066.02
Step by Step Solution
- Step 1: Write the proportion equation
159,350.14 : 219,898.94 = 87,730.70 : x - Step 2: Convert to fraction form
159,350.14/219,898.94 = 87,730.70/x - Step 3: Cross multiply
159,350.14x = 219,898.94 × 87,730.70 - Step 4: Simplify right side
159,350.14x = 19,291,887,935.46 - Step 5: Solve for x
x = 19,291,887,935.46/159,350.14 - Step 6: Final answer
x = 121,066.02
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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.