Finding the Fourth Proportional to 134,973.18, 186,257.96 and 74,542.52
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Solution
The fourth proportional to 134,973.18, 186,257.96 and 74,542.52 is: 102,865.90
Step by Step Solution
- Step 1: Write the proportion equation
134,973.18 : 186,257.96 = 74,542.52 : x - Step 2: Convert to fraction form
134,973.18/186,257.96 = 74,542.52/x - Step 3: Cross multiply
134,973.18x = 186,257.96 × 74,542.52 - Step 4: Simplify right side
134,973.18x = 13,884,137,708.46 - Step 5: Solve for x
x = 13,884,137,708.46/134,973.18 - Step 6: Final answer
x = 102,865.90
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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.