Finding the Fourth Proportional to 98,257.84, 147,386.14 and 28,137.14
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Solution
The fourth proportional to 98,257.84, 147,386.14 and 28,137.14 is: 42,205.53
Step by Step Solution
- Step 1: Write the proportion equation
98,257.84 : 147,386.14 = 28,137.14 : x - Step 2: Convert to fraction form
98,257.84/147,386.14 = 28,137.14/x - Step 3: Cross multiply
98,257.84x = 147,386.14 × 28,137.14 - Step 4: Simplify right side
98,257.84x = 4,147,024,455.24 - Step 5: Solve for x
x = 4,147,024,455.24/98,257.84 - Step 6: Final answer
x = 42,205.53
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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.