Finding the Fourth Proportional to 185,765.84, 278,560.91 and 71,966.95
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Solution
The fourth proportional to 185,765.84, 278,560.91 and 71,966.95 is: 107,916.39
Step by Step Solution
- Step 1: Write the proportion equation
185,765.84 : 278,560.91 = 71,966.95 : x - Step 2: Convert to fraction form
185,765.84/278,560.91 = 71,966.95/x - Step 3: Cross multiply
185,765.84x = 278,560.91 × 71,966.95 - Step 4: Simplify right side
185,765.84x = 20,047,178,398.15 - Step 5: Solve for x
x = 20,047,178,398.15/185,765.84 - Step 6: Final answer
x = 107,916.39
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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.