Finding the Fourth Proportional to 152,717.76, 210,749.88 and 84,745.08
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Solution
The fourth proportional to 152,717.76, 210,749.88 and 84,745.08 is: 116,947.86
Step by Step Solution
- Step 1: Write the proportion equation
152,717.76 : 210,749.88 = 84,745.08 : x - Step 2: Convert to fraction form
152,717.76/210,749.88 = 84,745.08/x - Step 3: Cross multiply
152,717.76x = 210,749.88 × 84,745.08 - Step 4: Simplify right side
152,717.76x = 17,860,015,440.59 - Step 5: Solve for x
x = 17,860,015,440.59/152,717.76 - Step 6: Final answer
x = 116,947.86
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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.