Finding the Fourth Proportional to 134,037.29, 184,965.91 and 72,781.09
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Solution
The fourth proportional to 134,037.29, 184,965.91 and 72,781.09 is: 100,434.88
Step by Step Solution
- Step 1: Write the proportion equation
134,037.29 : 184,965.91 = 72,781.09 : x - Step 2: Convert to fraction form
134,037.29/184,965.91 = 72,781.09/x - Step 3: Cross multiply
134,037.29x = 184,965.91 × 72,781.09 - Step 4: Simplify right side
134,037.29x = 13,462,019,898.27 - Step 5: Solve for x
x = 13,462,019,898.27/134,037.29 - Step 6: Final answer
x = 100,434.88
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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.