Finding the Fourth Proportional to 191,125.24, 286,588.74 and 85,854.28
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Solution
The fourth proportional to 191,125.24, 286,588.74 and 85,854.28 is: 128,736.89
Step by Step Solution
- Step 1: Write the proportion equation
191,125.24 : 286,588.74 = 85,854.28 : x - Step 2: Convert to fraction form
191,125.24/286,588.74 = 85,854.28/x - Step 3: Cross multiply
191,125.24x = 286,588.74 × 85,854.28 - Step 4: Simplify right side
191,125.24x = 24,604,869,928.81 - Step 5: Solve for x
x = 24,604,869,928.81/191,125.24 - Step 6: Final answer
x = 128,736.89
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1.5x scale
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.