Finding the Fourth Proportional to 135,625.98, 187,154.68 and 78,267.68
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Solution
The fourth proportional to 135,625.98, 187,154.68 and 78,267.68 is: 108,004.11
Step by Step Solution
- Step 1: Write the proportion equation
135,625.98 : 187,154.68 = 78,267.68 : x - Step 2: Convert to fraction form
135,625.98/187,154.68 = 78,267.68/x - Step 3: Cross multiply
135,625.98x = 187,154.68 × 78,267.68 - Step 4: Simplify right side
135,625.98x = 14,648,162,604.74 - Step 5: Solve for x
x = 14,648,162,604.74/135,625.98 - Step 6: Final answer
x = 108,004.11
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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.