Finding the Fourth Proportional to 191,102.62, 286,555.63 and 85,831.26
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Solution
The fourth proportional to 191,102.62, 286,555.63 and 85,831.26 is: 128,702.74
Step by Step Solution
- Step 1: Write the proportion equation
191,102.62 : 286,555.63 = 85,831.26 : x - Step 2: Convert to fraction form
191,102.62/286,555.63 = 85,831.26/x - Step 3: Cross multiply
191,102.62x = 286,555.63 × 85,831.26 - Step 4: Simplify right side
191,102.62x = 24,595,430,782.99 - Step 5: Solve for x
x = 24,595,430,782.99/191,102.62 - Step 6: Final answer
x = 128,702.74
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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.