Finding the Fourth Proportional to 133,542.99, 184,288.73 and 72,289.23
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Solution
The fourth proportional to 133,542.99, 184,288.73 and 72,289.23 is: 99,758.81
Step by Step Solution
- Step 1: Write the proportion equation
133,542.99 : 184,288.73 = 72,289.23 : x - Step 2: Convert to fraction form
133,542.99/184,288.73 = 72,289.23/x - Step 3: Cross multiply
133,542.99x = 184,288.73 × 72,289.23 - Step 4: Simplify right side
133,542.99x = 13,322,090,027.93 - Step 5: Solve for x
x = 13,322,090,027.93/133,542.99 - Step 6: Final answer
x = 99,758.81
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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.