Finding the Fourth Proportional to 148,045.41, 221,969.48 and 81,516.87
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Solution
The fourth proportional to 148,045.41, 221,969.48 and 81,516.87 is: 122,220.99
Step by Step Solution
- Step 1: Write the proportion equation
148,045.41 : 221,969.48 = 81,516.87 : x - Step 2: Convert to fraction form
148,045.41/221,969.48 = 81,516.87/x - Step 3: Cross multiply
148,045.41x = 221,969.48 × 81,516.87 - Step 4: Simplify right side
148,045.41x = 18,094,256,837.54 - Step 5: Solve for x
x = 18,094,256,837.54/148,045.41 - Step 6: Final answer
x = 122,220.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.