Finding the Fourth Proportional to 134,756.93, 185,964.19 and 77,399.98
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Solution
The fourth proportional to 134,756.93, 185,964.19 and 77,399.98 is: 106,811.75
Step by Step Solution
- Step 1: Write the proportion equation
134,756.93 : 185,964.19 = 77,399.98 : x - Step 2: Convert to fraction form
134,756.93/185,964.19 = 77,399.98/x - Step 3: Cross multiply
134,756.93x = 185,964.19 × 77,399.98 - Step 4: Simplify right side
134,756.93x = 14,393,623,928.31 - Step 5: Solve for x
x = 14,393,623,928.31/134,756.93 - Step 6: Final answer
x = 106,811.75
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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.