Finding the Fourth Proportional to 130,935.48, 180,696.18 and 74,352.12
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Solution
The fourth proportional to 130,935.48, 180,696.18 and 74,352.12 is: 102,608.89
Step by Step Solution
- Step 1: Write the proportion equation
130,935.48 : 180,696.18 = 74,352.12 : x - Step 2: Convert to fraction form
130,935.48/180,696.18 = 74,352.12/x - Step 3: Cross multiply
130,935.48x = 180,696.18 × 74,352.12 - Step 4: Simplify right side
130,935.48x = 13,435,144,058.90 - Step 5: Solve for x
x = 13,435,144,058.90/130,935.48 - Step 6: Final answer
x = 102,608.89
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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.