Finding the Fourth Proportional to 92,373.99, 138,214.97 and 65,781.42
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Solution
The fourth proportional to 92,373.99, 138,214.97 and 65,781.42 is: 98,425.72
Step by Step Solution
- Step 1: Write the proportion equation
92,373.99 : 138,214.97 = 65,781.42 : x - Step 2: Convert to fraction form
92,373.99/138,214.97 = 65,781.42/x - Step 3: Cross multiply
92,373.99x = 138,214.97 × 65,781.42 - Step 4: Simplify right side
92,373.99x = 9,091,976,662.95 - Step 5: Solve for x
x = 9,091,976,662.95/92,373.99 - Step 6: Final answer
x = 98,425.72
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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.