Finding the Fourth Proportional to 83,973.70, 117,718.70 and 83,973.70
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Solution
The fourth proportional to 83,973.70, 117,718.70 and 83,973.70 is: 117,718.70
Step by Step Solution
- Step 1: Write the proportion equation
83,973.70 : 117,718.70 = 83,973.70 : x - Step 2: Convert to fraction form
83,973.70/117,718.70 = 83,973.70/x - Step 3: Cross multiply
83,973.70x = 117,718.70 × 83,973.70 - Step 4: Simplify right side
83,973.70x = 9,885,274,798.19 - Step 5: Solve for x
x = 9,885,274,798.19/83,973.70 - Step 6: Final answer
x = 117,718.70
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.