Finding the Fourth Proportional to 135,248.92, 186,640.14 and 74,822.92
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Solution
The fourth proportional to 135,248.92, 186,640.14 and 74,822.92 is: 103,253.77
Step by Step Solution
- Step 1: Write the proportion equation
135,248.92 : 186,640.14 = 74,822.92 : x - Step 2: Convert to fraction form
135,248.92/186,640.14 = 74,822.92/x - Step 3: Cross multiply
135,248.92x = 186,640.14 × 74,822.92 - Step 4: Simplify right side
135,248.92x = 13,964,960,264.01 - Step 5: Solve for x
x = 13,964,960,264.01/135,248.92 - Step 6: Final answer
x = 103,253.77
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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.