Finding the Fourth Proportional to 138,020.52, 207,030.54 and 43,257.99
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Solution
The fourth proportional to 138,020.52, 207,030.54 and 43,257.99 is: 64,886.91
Step by Step Solution
- Step 1: Write the proportion equation
138,020.52 : 207,030.54 = 43,257.99 : x - Step 2: Convert to fraction form
138,020.52/207,030.54 = 43,257.99/x - Step 3: Cross multiply
138,020.52x = 207,030.54 × 43,257.99 - Step 4: Simplify right side
138,020.52x = 8,955,725,029.01 - Step 5: Solve for x
x = 8,955,725,029.01/138,020.52 - Step 6: Final answer
x = 64,886.91
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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.