Finding the Fourth Proportional to 99,908.01, 149,935.95 and 47,317.62
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Solution
The fourth proportional to 99,908.01, 149,935.95 and 47,317.62 is: 71,011.45
Step by Step Solution
- Step 1: Write the proportion equation
99,908.01 : 149,935.95 = 47,317.62 : x - Step 2: Convert to fraction form
99,908.01/149,935.95 = 47,317.62/x - Step 3: Cross multiply
99,908.01x = 149,935.95 × 47,317.62 - Step 4: Simplify right side
99,908.01x = 7,094,612,306.44 - Step 5: Solve for x
x = 7,094,612,306.44/99,908.01 - Step 6: Final answer
x = 71,011.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.