Finding the Fourth Proportional to 125,989.16, 173,865.06 and 69,400.54
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Solution
The fourth proportional to 125,989.16, 173,865.06 and 69,400.54 is: 95,772.76
Step by Step Solution
- Step 1: Write the proportion equation
125,989.16 : 173,865.06 = 69,400.54 : x - Step 2: Convert to fraction form
125,989.16/173,865.06 = 69,400.54/x - Step 3: Cross multiply
125,989.16x = 173,865.06 × 69,400.54 - Step 4: Simplify right side
125,989.16x = 12,066,329,051.13 - Step 5: Solve for x
x = 12,066,329,051.13/125,989.16 - Step 6: Final answer
x = 95,772.76
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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.