Finding the Fourth Proportional to 98,831.79, 148,262.13 and 28,701.99
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Solution
The fourth proportional to 98,831.79, 148,262.13 and 28,701.99 is: 43,057.18
Step by Step Solution
- Step 1: Write the proportion equation
98,831.79 : 148,262.13 = 28,701.99 : x - Step 2: Convert to fraction form
98,831.79/148,262.13 = 28,701.99/x - Step 3: Cross multiply
98,831.79x = 148,262.13 × 28,701.99 - Step 4: Simplify right side
98,831.79x = 4,255,418,172.64 - Step 5: Solve for x
x = 4,255,418,172.64/98,831.79 - Step 6: Final answer
x = 43,057.18
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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.