Finding the Fourth Proportional to 122,681.40, 184,022.10 and 121,903.80
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Solution
The fourth proportional to 122,681.40, 184,022.10 and 121,903.80 is: 182,855.70
Step by Step Solution
- Step 1: Write the proportion equation
122,681.40 : 184,022.10 = 121,903.80 : x - Step 2: Convert to fraction form
122,681.40/184,022.10 = 121,903.80/x - Step 3: Cross multiply
122,681.40x = 184,022.10 × 121,903.80 - Step 4: Simplify right side
122,681.40x = 22,432,993,273.98 - Step 5: Solve for x
x = 22,432,993,273.98/122,681.40 - Step 6: Final answer
x = 182,855.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.