Finding the Fourth Proportional to 127,791.84, 176,345.54 and 70,430.99
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Solution
The fourth proportional to 127,791.84, 176,345.54 and 70,430.99 is: 97,190.79
Step by Step Solution
- Step 1: Write the proportion equation
127,791.84 : 176,345.54 = 70,430.99 : x - Step 2: Convert to fraction form
127,791.84/176,345.54 = 70,430.99/x - Step 3: Cross multiply
127,791.84x = 176,345.54 × 70,430.99 - Step 4: Simplify right side
127,791.84x = 12,420,190,258.63 - Step 5: Solve for x
x = 12,420,190,258.63/127,791.84 - Step 6: Final answer
x = 97,190.79
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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.