Finding the Fourth Proportional to 116,319.91, 160,539.14 and 71,024.30
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Solution
The fourth proportional to 116,319.91, 160,539.14 and 71,024.30 is: 98,024.32
Step by Step Solution
- Step 1: Write the proportion equation
116,319.91 : 160,539.14 = 71,024.30 : x - Step 2: Convert to fraction form
116,319.91/160,539.14 = 71,024.30/x - Step 3: Cross multiply
116,319.91x = 160,539.14 × 71,024.30 - Step 4: Simplify right side
116,319.91x = 11,402,180,041.10 - Step 5: Solve for x
x = 11,402,180,041.10/116,319.91 - Step 6: Final answer
x = 98,024.32
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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.