Finding the Fourth Proportional to 133,931.36, 184,813.04 and 79,474.12
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Solution
The fourth proportional to 133,931.36, 184,813.04 and 79,474.12 is: 109,667.03
Step by Step Solution
- Step 1: Write the proportion equation
133,931.36 : 184,813.04 = 79,474.12 : x - Step 2: Convert to fraction form
133,931.36/184,813.04 = 79,474.12/x - Step 3: Cross multiply
133,931.36x = 184,813.04 × 79,474.12 - Step 4: Simplify right side
133,931.36x = 14,687,853,321.15 - Step 5: Solve for x
x = 14,687,853,321.15/133,931.36 - Step 6: Final answer
x = 109,667.03
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1.5x scale
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.