Finding the Fourth Proportional to 137,909.18, 190,303.00 and 77,475.08
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Solution
The fourth proportional to 137,909.18, 190,303.00 and 77,475.08 is: 106,909.05
Step by Step Solution
- Step 1: Write the proportion equation
137,909.18 : 190,303.00 = 77,475.08 : x - Step 2: Convert to fraction form
137,909.18/190,303.00 = 77,475.08/x - Step 3: Cross multiply
137,909.18x = 190,303.00 × 77,475.08 - Step 4: Simplify right side
137,909.18x = 14,743,739,004.04 - Step 5: Solve for x
x = 14,743,739,004.04/137,909.18 - Step 6: Final answer
x = 106,909.05
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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.