Finding the Fourth Proportional to 135,747.33, 187,358.57 and 78,395.99
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Solution
The fourth proportional to 135,747.33, 187,358.57 and 78,395.99 is: 108,202.20
Step by Step Solution
- Step 1: Write the proportion equation
135,747.33 : 187,358.57 = 78,395.99 : x - Step 2: Convert to fraction form
135,747.33/187,358.57 = 78,395.99/x - Step 3: Cross multiply
135,747.33x = 187,358.57 × 78,395.99 - Step 4: Simplify right side
135,747.33x = 14,688,159,839.33 - Step 5: Solve for x
x = 14,688,159,839.33/135,747.33 - Step 6: Final answer
x = 108,202.20
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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.