Finding the Fourth Proportional to 101,658.18, 140,284.47 and 56,334.99
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Solution
The fourth proportional to 101,658.18, 140,284.47 and 56,334.99 is: 77,740.17
Step by Step Solution
- Step 1: Write the proportion equation
101,658.18 : 140,284.47 = 56,334.99 : x - Step 2: Convert to fraction form
101,658.18/140,284.47 = 56,334.99/x - Step 3: Cross multiply
101,658.18x = 140,284.47 × 56,334.99 - Step 4: Simplify right side
101,658.18x = 7,902,924,214.61 - Step 5: Solve for x
x = 7,902,924,214.61/101,658.18 - Step 6: Final answer
x = 77,740.17
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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.