Finding the Fourth Proportional to 147,775.25, 203,931.14 and 84,117.14
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Solution
The fourth proportional to 147,775.25, 203,931.14 and 84,117.14 is: 116,082.39
Step by Step Solution
- Step 1: Write the proportion equation
147,775.25 : 203,931.14 = 84,117.14 : x - Step 2: Convert to fraction form
147,775.25/203,931.14 = 84,117.14/x - Step 3: Cross multiply
147,775.25x = 203,931.14 × 84,117.14 - Step 4: Simplify right side
147,775.25x = 17,154,104,253.74 - Step 5: Solve for x
x = 17,154,104,253.74/147,775.25 - Step 6: Final answer
x = 116,082.39
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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.