Finding the Fourth Proportional to 99,358.14, 149,038.95 and 28,282.62
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Solution
The fourth proportional to 99,358.14, 149,038.95 and 28,282.62 is: 42,424.43
Step by Step Solution
- Step 1: Write the proportion equation
99,358.14 : 149,038.95 = 28,282.62 : x - Step 2: Convert to fraction form
99,358.14/149,038.95 = 28,282.62/x - Step 3: Cross multiply
99,358.14x = 149,038.95 × 28,282.62 - Step 4: Simplify right side
99,358.14x = 4,215,211,988.05 - Step 5: Solve for x
x = 4,215,211,988.05/99,358.14 - Step 6: Final answer
x = 42,424.43
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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.