Finding the Fourth Proportional to 168,869.84, 232,938.84 and 111,509.68
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Solution
The fourth proportional to 168,869.84, 232,938.84 and 111,509.68 is: 153,816.31
Step by Step Solution
- Step 1: Write the proportion equation
168,869.84 : 232,938.84 = 111,509.68 : x - Step 2: Convert to fraction form
168,869.84/232,938.84 = 111,509.68/x - Step 3: Cross multiply
168,869.84x = 232,938.84 × 111,509.68 - Step 4: Simplify right side
168,869.84x = 25,974,935,507.97 - Step 5: Solve for x
x = 25,974,935,507.97/168,869.84 - Step 6: Final answer
x = 153,816.31
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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.