Finding the Fourth Proportional to 113,014.09, 155,966.74 and 62,713.09
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Solution
The fourth proportional to 113,014.09, 155,966.74 and 62,713.09 is: 86,548.11
Step by Step Solution
- Step 1: Write the proportion equation
113,014.09 : 155,966.74 = 62,713.09 : x - Step 2: Convert to fraction form
113,014.09/155,966.74 = 62,713.09/x - Step 3: Cross multiply
113,014.09x = 155,966.74 × 62,713.09 - Step 4: Simplify right side
113,014.09x = 9,781,155,889.06 - Step 5: Solve for x
x = 9,781,155,889.06/113,014.09 - Step 6: Final answer
x = 86,548.11
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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.