Finding the Fourth Proportional to 133,813.62, 184,671.09 and 74,197.62
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Solution
The fourth proportional to 133,813.62, 184,671.09 and 74,197.62 is: 102,397.31
Step by Step Solution
- Step 1: Write the proportion equation
133,813.62 : 184,671.09 = 74,197.62 : x - Step 2: Convert to fraction form
133,813.62/184,671.09 = 74,197.62/x - Step 3: Cross multiply
133,813.62x = 184,671.09 × 74,197.62 - Step 4: Simplify right side
133,813.62x = 13,702,155,360.81 - Step 5: Solve for x
x = 13,702,155,360.81/133,813.62 - Step 6: Final answer
x = 102,397.31
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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.