Finding the Fourth Proportional to 117,424.71, 162,074.93 and 72,113.49
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Solution
The fourth proportional to 117,424.71, 162,074.93 and 72,113.49 is: 99,534.32
Step by Step Solution
- Step 1: Write the proportion equation
117,424.71 : 162,074.93 = 72,113.49 : x - Step 2: Convert to fraction form
117,424.71/162,074.93 = 72,113.49/x - Step 3: Cross multiply
117,424.71x = 162,074.93 × 72,113.49 - Step 4: Simplify right side
117,424.71x = 11,687,788,483.24 - Step 5: Solve for x
x = 11,687,788,483.24/117,424.71 - Step 6: Final answer
x = 99,534.32
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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.