Finding the Fourth Proportional to 122,881.43, 184,026.90 and 70,130.99
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Solution
The fourth proportional to 122,881.43, 184,026.90 and 70,130.99 is: 105,027.98
Step by Step Solution
- Step 1: Write the proportion equation
122,881.43 : 184,026.90 = 70,130.99 : x - Step 2: Convert to fraction form
122,881.43/184,026.90 = 70,130.99/x - Step 3: Cross multiply
122,881.43x = 184,026.90 × 70,130.99 - Step 4: Simplify right side
122,881.43x = 12,905,988,683.63 - Step 5: Solve for x
x = 12,905,988,683.63/122,881.43 - Step 6: Final answer
x = 105,027.98
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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.