Finding the Fourth Proportional to 130,334.11, 179,852.36 and 72,963.74
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Solution
The fourth proportional to 130,334.11, 179,852.36 and 72,963.74 is: 100,685.09
Step by Step Solution
- Step 1: Write the proportion equation
130,334.11 : 179,852.36 = 72,963.74 : x - Step 2: Convert to fraction form
130,334.11/179,852.36 = 72,963.74/x - Step 3: Cross multiply
130,334.11x = 179,852.36 × 72,963.74 - Step 4: Simplify right side
130,334.11x = 13,122,701,465.47 - Step 5: Solve for x
x = 13,122,701,465.47/130,334.11 - Step 6: Final answer
x = 100,685.09
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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.