Finding the Fourth Proportional to 157,429.24, 236,142.68 and 45,109.55
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Solution
The fourth proportional to 157,429.24, 236,142.68 and 45,109.55 is: 67,663.99
Step by Step Solution
- Step 1: Write the proportion equation
157,429.24 : 236,142.68 = 45,109.55 : x - Step 2: Convert to fraction form
157,429.24/236,142.68 = 45,109.55/x - Step 3: Cross multiply
157,429.24x = 236,142.68 × 45,109.55 - Step 4: Simplify right side
157,429.24x = 10,652,290,395.40 - Step 5: Solve for x
x = 10,652,290,395.40/157,429.24 - Step 6: Final answer
x = 67,663.99
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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.