Finding the Fourth Proportional to 135,569.76, 187,091.06 and 81,844.28
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Solution
The fourth proportional to 135,569.76, 187,091.06 and 81,844.28 is: 112,948.00
Step by Step Solution
- Step 1: Write the proportion equation
135,569.76 : 187,091.06 = 81,844.28 : x - Step 2: Convert to fraction form
135,569.76/187,091.06 = 81,844.28/x - Step 3: Cross multiply
135,569.76x = 187,091.06 × 81,844.28 - Step 4: Simplify right side
135,569.76x = 15,312,333,100.14 - Step 5: Solve for x
x = 15,312,333,100.14/135,569.76 - Step 6: Final answer
x = 112,948.00
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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.