Finding the Fourth Proportional to 125,595.71, 173,279.21 and 77,831.63
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Solution
The fourth proportional to 125,595.71, 173,279.21 and 77,831.63 is: 107,381.09
Step by Step Solution
- Step 1: Write the proportion equation
125,595.71 : 173,279.21 = 77,831.63 : x - Step 2: Convert to fraction form
125,595.71/173,279.21 = 77,831.63/x - Step 3: Cross multiply
125,595.71x = 173,279.21 × 77,831.63 - Step 4: Simplify right side
125,595.71x = 13,486,604,084.48 - Step 5: Solve for x
x = 13,486,604,084.48/125,595.71 - Step 6: Final answer
x = 107,381.09
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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.