Finding the Fourth Proportional to 114,123.96, 157,495.71 and 63,135.81
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Solution
The fourth proportional to 114,123.96, 157,495.71 and 63,135.81 is: 87,129.99
Step by Step Solution
- Step 1: Write the proportion equation
114,123.96 : 157,495.71 = 63,135.81 : x - Step 2: Convert to fraction form
114,123.96/157,495.71 = 63,135.81/x - Step 3: Cross multiply
114,123.96x = 157,495.71 × 63,135.81 - Step 4: Simplify right side
114,123.96x = 9,943,619,222.38 - Step 5: Solve for x
x = 9,943,619,222.38/114,123.96 - Step 6: Final answer
x = 87,129.99
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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.