Finding the Fourth Proportional to 102,907.06, 141,875.61 and 74,202.70
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Solution
The fourth proportional to 102,907.06, 141,875.61 and 74,202.70 is: 102,301.57
Step by Step Solution
- Step 1: Write the proportion equation
102,907.06 : 141,875.61 = 74,202.70 : x - Step 2: Convert to fraction form
102,907.06/141,875.61 = 74,202.70/x - Step 3: Cross multiply
102,907.06x = 141,875.61 × 74,202.70 - Step 4: Simplify right side
102,907.06x = 10,527,553,326.15 - Step 5: Solve for x
x = 10,527,553,326.15/102,907.06 - Step 6: Final answer
x = 102,301.57
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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.