Finding the Fourth Proportional to 101,355.14, 139,882.26 and 58,913.68
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Solution
The fourth proportional to 101,355.14, 139,882.26 and 58,913.68 is: 81,307.95
Step by Step Solution
- Step 1: Write the proportion equation
101,355.14 : 139,882.26 = 58,913.68 : x - Step 2: Convert to fraction form
101,355.14/139,882.26 = 58,913.68/x - Step 3: Cross multiply
101,355.14x = 139,882.26 × 58,913.68 - Step 4: Simplify right side
101,355.14x = 8,240,978,703.32 - Step 5: Solve for x
x = 8,240,978,703.32/101,355.14 - Step 6: Final answer
x = 81,307.95
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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.