Finding the Fourth Proportional to 103,652.14, 143,032.11 and 61,202.50
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Solution
The fourth proportional to 103,652.14, 143,032.11 and 61,202.50 is: 84,454.82
Step by Step Solution
- Step 1: Write the proportion equation
103,652.14 : 143,032.11 = 61,202.50 : x - Step 2: Convert to fraction form
103,652.14/143,032.11 = 61,202.50/x - Step 3: Cross multiply
103,652.14x = 143,032.11 × 61,202.50 - Step 4: Simplify right side
103,652.14x = 8,753,922,712.28 - Step 5: Solve for x
x = 8,753,922,712.28/103,652.14 - Step 6: Final answer
x = 84,454.82
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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.